--- chromium-76.0.3809.46/base/message_loop/message_pump.cc.gcc8	2019-06-27 23:59:00.000000000 +0200
+++ chromium-76.0.3809.46/base/message_loop/message_pump.cc	2019-07-01 01:13:08.903490091 +0200
@@ -80,6 +80,7 @@ std::unique_ptr<MessagePump> MessagePump
       return std::make_unique<MessagePumpDefault>();
 #endif
   }
+  return nullptr;
 }
 
 }  // namespace base
--- chromium-76.0.3809.46/base/task/promise/abstract_promise.cc.gcc8	2019-06-27 23:59:00.000000000 +0200
+++ chromium-76.0.3809.46/base/task/promise/abstract_promise.cc	2019-07-01 01:21:10.315469832 +0200
@@ -365,8 +365,9 @@ bool AbstractPromise::OnPrerequisiteCanc
       // cancellation.
       if (IsResolvedWithPromise())
         OnCanceled();
-      return false;
+      break;
   }
+  return false;
 }
 
 void AbstractPromise::OnResolveDispatchReadyDependents() {
--- chromium-76.0.3809.46/components/prefs/scoped_user_pref_update.cc.gcc8	2019-06-27 23:59:19.000000000 +0200
+++ chromium-76.0.3809.46/components/prefs/scoped_user_pref_update.cc	2019-07-01 01:26:56.050011380 +0200
@@ -30,7 +30,9 @@ base::Value* ScopedUserPrefUpdateBase::G
   // side-stepping CHECKs built into base::Value. Thus we need to be certain
   // that the type matches.
   if (value_)
+  {
     CHECK_EQ(value_->type(), type);
+  }
   return value_;
 }
 
--- chromium-76.0.3809.46/third_party/angle/src/libANGLE/renderer/vulkan/ContextVk.cpp.gcc8	2019-06-28 00:04:20.000000000 +0200
+++ chromium-76.0.3809.46/third_party/angle/src/libANGLE/renderer/vulkan/ContextVk.cpp	2019-07-01 20:48:07.669481311 +0200
@@ -878,9 +878,6 @@ angle::Result ContextVk::submitFrame(con
                                      vk::PrimaryCommandBuffer &&commandBuffer)
 {
     ANGLE_TRACE_EVENT0("gpu.angle", "RendererVk::submitFrame");
-    VkFenceCreateInfo fenceInfo = {};
-    fenceInfo.sType             = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
-    fenceInfo.flags             = 0;
 
     VkDevice device = getDevice();
     vk::DeviceScoped<CommandBatch> scopedBatch(device);
--- chromium-76.0.3809.46/sql/recover_module/parsing.cc.gcc8	2019-06-27 23:59:34.000000000 +0200
+++ chromium-76.0.3809.46/sql/recover_module/parsing.cc	2019-07-01 20:59:19.606507557 +0200
@@ -99,9 +99,9 @@ base::StringPiece ColumnTypeToSql(Module
     case ModuleColumnType::kRowId:
       return kIntegerSql;  // rowids are ints.
     case ModuleColumnType::kAny:
-      return base::StringPiece();
+      break;
   }
-  NOTREACHED();
+  return base::StringPiece();
 }
 
 }  // namespace
--- chromium-76.0.3809.46/third_party/webrtc/pc/rtc_stats_collector.cc.gcc8	2019-06-28 00:04:49.000000000 +0200
+++ chromium-76.0.3809.46/third_party/webrtc/pc/rtc_stats_collector.cc	2019-07-01 21:08:19.618953457 +0200
@@ -202,7 +202,7 @@ const char* QualityLimitationReasonToRTC
     QualityLimitationReason reason) {
   switch (reason) {
     case QualityLimitationReason::kNone:
-      return RTCQualityLimitationReason::kNone;
+      break;
     case QualityLimitationReason::kCpu:
       return RTCQualityLimitationReason::kCpu;
     case QualityLimitationReason::kBandwidth:
@@ -210,6 +210,7 @@ const char* QualityLimitationReasonToRTC
     case QualityLimitationReason::kOther:
       return RTCQualityLimitationReason::kOther;
   }
+  return RTCQualityLimitationReason::kNone;
 }
 
 double DoubleAudioLevelFromIntAudioLevel(int audio_level) {
--- chromium-76.0.3809.46/third_party/crashpad/crashpad/util/misc/pdb_structures.h.gcc8	2019-07-01 00:48:12.411760753 +0200
+++ chromium-76.0.3809.46/third_party/crashpad/crashpad/util/misc/pdb_structures.h	2019-07-01 21:41:07.470903154 +0200
@@ -131,7 +131,7 @@ struct CodeViewRecordBuildID {
   //!
   //! In a hex dump, this will appear as “LEpB” when produced by a little-endian
   //! machine.
-  static const uint32_t kSignature = 'BpEL';
+  static const uint32_t kSignature = 0x4270454c; // 'BpEL'
 
   //! \brief The magic number identifying this structure version, the value of
   //!     #kSignature.
--- chromium-76.0.3809.46/chrome/browser/notifications/scheduler/internal/proto_conversion.cc.gcc8	2019-07-01 00:48:14.428722404 +0200
+++ chromium-76.0.3809.46/chrome/browser/notifications/scheduler/internal/proto_conversion.cc	2019-07-01 21:55:48.844531001 +0200
@@ -206,6 +206,7 @@ proto::ScheduleParams_Priority ScheduleP
     case Priority::kNoThrottle:
       return proto::ScheduleParams_Priority_NO_THROTTLE;
   }
+  return proto::ScheduleParams_Priority_LOW;
 }
 
 // Converts ScheduleParams::Priority from proto buffer type.
@@ -220,6 +221,7 @@ ScheduleParams::Priority ScheduleParamsP
     case proto::ScheduleParams_Priority_NO_THROTTLE:
       return Priority::kNoThrottle;
   }
+  return Priority::kLow;
 }
 
 // Converts ScheduleParams to proto buffer type.
--- chromium-76.0.3809.46/base/logging.h.gcc8	2019-07-01 22:12:12.066751801 +0200
+++ chromium-76.0.3809.46/base/logging.h	2019-07-01 22:12:28.864495229 +0200
@@ -1036,6 +1036,7 @@ inline std::ostream& operator<<(std::ost
 #endif
 
 #define NOTIMPLEMENTED() DLOG(ERROR) << NOTIMPLEMENTED_MSG
+#if DCHECK_IS_ON()
 #define NOTIMPLEMENTED_LOG_ONCE()                       \
   do {                                                  \
     static bool logged_once = false;                    \
@@ -1043,5 +1044,7 @@ inline std::ostream& operator<<(std::ost
     logged_once = true;                                 \
   } while (0);                                          \
   EAT_STREAM_PARAMETERS
-
+#else
+#define NOTIMPLEMENTED_LOG_ONCE() EAT_STREAM_PARAMETERS
+#endif  // DCHECK_IS_ON()
 #endif  // BASE_LOGGING_H_
--- chromium-76.0.3809.46/v8/src/compiler/bytecode-graph-builder.cc.gcc8	2019-06-28 00:04:31.000000000 +0200
+++ chromium-76.0.3809.46/v8/src/compiler/bytecode-graph-builder.cc	2019-07-02 00:02:52.377557951 +0200
@@ -2973,7 +2973,7 @@ void BytecodeGraphBuilder::VisitTestType
   Node* object = environment()->LookupAccumulator();
   auto literal_flag = interpreter::TestTypeOfFlags::Decode(
       bytecode_iterator().GetFlagOperand(0));
-  Node* result;
+  Node* result = nullptr;
   switch (literal_flag) {
     case interpreter::TestTypeOfFlags::LiteralFlag::kNumber:
       result = NewNode(simplified()->ObjectIsNumber(), object);
--- chromium-76.0.3809.46/v8/src/compiler/code-assembler.cc.gcc8	2019-06-28 00:04:31.000000000 +0200
+++ chromium-76.0.3809.46/v8/src/compiler/code-assembler.cc	2019-07-02 00:07:49.856153279 +0200
@@ -1005,7 +1005,7 @@ void CodeAssembler::StoreToObject(Machin
                                   TNode<HeapObject> object,
                                   TNode<IntPtrT> offset, Node* value,
                                   StoreToObjectWriteBarrier write_barrier) {
-  WriteBarrierKind write_barrier_kind;
+  WriteBarrierKind write_barrier_kind = WriteBarrierKind::kNoWriteBarrier;
   switch (write_barrier) {
     case StoreToObjectWriteBarrier::kFull:
       write_barrier_kind = WriteBarrierKind::kFullWriteBarrier;
--- chromium-76.0.3809.46/v8/src/compiler/js-heap-broker.cc.gcc8	2019-06-28 00:04:31.000000000 +0200
+++ chromium-76.0.3809.46/v8/src/compiler/js-heap-broker.cc	2019-07-02 00:11:37.008059434 +0200
@@ -1769,7 +1769,7 @@ CellData* SourceTextModuleData::GetCell(
                          "module cell " << cell_index << " on " << this);
     return nullptr;
   }
-  CellData* cell;
+  CellData* cell = nullptr;
   switch (SourceTextModuleDescriptor::GetCellIndexKind(cell_index)) {
     case SourceTextModuleDescriptor::kImport:
       cell = imports_.at(SourceTextModule::ImportIndex(cell_index));
--- chromium-76.0.3809.46/v8/src/compiler/linkage.cc.gcc8	2019-06-28 00:04:31.000000000 +0200
+++ chromium-76.0.3809.46/v8/src/compiler/linkage.cc	2019-07-02 00:16:03.265292900 +0200
@@ -412,7 +412,7 @@ CallDescriptor* Linkage::GetStubCallDesc
   }
 
   // The target for stub calls depends on the requested mode.
-  CallDescriptor::Kind kind;
+  CallDescriptor::Kind kind = CallDescriptor::kCallCodeObject;
   MachineType target_type;
   switch (stub_mode) {
     case StubCallMode::kCallCodeObject:
--- chromium-76.0.3809.46/v8/src/heap/scavenger.cc.gcc8	2019-06-28 00:04:31.000000000 +0200
+++ chromium-76.0.3809.46/v8/src/heap/scavenger.cc	2019-07-02 00:43:11.188390273 +0200
@@ -460,7 +460,7 @@ void Scavenger::Process(OneshotBarrier*
       }
     }
 
-    struct PromotionListEntry entry;
+    struct PromotionListEntry entry = { .size = 0 };
     while (promotion_list_.Pop(&entry)) {
       HeapObject target = entry.heap_object;
       IterateAndScavengePromotedObject(target, entry.map, entry.size);
--- chromium-76.0.3809.46/v8/src/interpreter/bytecode-array-builder.cc.gcc8	2019-06-28 00:04:31.000000000 +0200
+++ chromium-76.0.3809.46/v8/src/interpreter/bytecode-array-builder.cc	2019-07-02 00:48:13.449810212 +0200
@@ -608,7 +608,7 @@ BytecodeArrayBuilder& BytecodeArrayBuild
 }
 
 BytecodeArrayBuilder& BytecodeArrayBuilder::LoadLiteral(AstSymbol symbol) {
-  size_t entry;
+  size_t entry = 0;
   switch (symbol) {
     case AstSymbol::kHomeObjectSymbol:
       entry = HomeObjectSymbolConstantPoolEntry();
--- chromium-76.0.3809.46/v8/src/objects/js-date-time-format.cc.gcc8	2019-06-28 00:04:31.000000000 +0200
+++ chromium-76.0.3809.46/v8/src/objects/js-date-time-format.cc	2019-07-02 00:53:00.457549682 +0200
@@ -1039,7 +1039,7 @@ icu::DateFormat::EStyle DateTimeStyleToE
 icu::UnicodeString ReplaceSkeleton(const icu::UnicodeString input,
                                    Intl::HourCycle hc) {
   icu::UnicodeString result;
-  char16_t to;
+  char16_t to = 0;
   switch (hc) {
     case Intl::HourCycle::kH11:
       to = 'K';
--- chromium-76.0.3809.46/v8/src/objects/literal-objects.cc.gcc8	2019-06-28 00:04:31.000000000 +0200
+++ chromium-76.0.3809.46/v8/src/objects/literal-objects.cc	2019-07-02 00:58:24.387664620 +0200
@@ -530,7 +530,7 @@ Handle<ClassBoilerplate> ClassBoilerplat
       continue;
     }
 
-    ClassBoilerplate::ValueKind value_kind;
+    ClassBoilerplate::ValueKind value_kind = ClassBoilerplate::kData;
     switch (property->kind()) {
       case ClassLiteral::Property::METHOD:
         value_kind = ClassBoilerplate::kData;
--- chromium-76.0.3809.46/cc/trees/layer_tree_host_impl.cc.gcc8	2019-07-02 03:01:14.954915412 +0200
+++ chromium-76.0.3809.46/cc/trees/layer_tree_host_impl.cc	2019-07-02 03:01:27.344698437 +0200
@@ -290,7 +290,7 @@ LayerTreeHostImpl::FrameData::FrameData(
 LayerTreeHostImpl::FrameData::~FrameData() = default;
 LayerTreeHostImpl::UIResourceData::UIResourceData() = default;
 LayerTreeHostImpl::UIResourceData::~UIResourceData() = default;
-LayerTreeHostImpl::UIResourceData::UIResourceData(UIResourceData&&) noexcept =
+LayerTreeHostImpl::UIResourceData::UIResourceData(UIResourceData&&) =
     default;
 LayerTreeHostImpl::UIResourceData& LayerTreeHostImpl::UIResourceData::operator=(
     UIResourceData&&) = default;
--- chromium-76.0.3809.46/components/services/heap_profiling/public/cpp/profiling_client.cc.gcc8	2019-06-27 23:59:19.000000000 +0200
+++ chromium-76.0.3809.46/components/services/heap_profiling/public/cpp/profiling_client.cc	2019-07-02 03:05:28.670471739 +0200
@@ -149,6 +149,7 @@ mojom::AllocatorType ConvertType(
     case base::PoissonAllocationSampler::AllocatorType::kBlinkGC:
       return mojom::AllocatorType::kOilpan;
   }
+  return mojom::AllocatorType::kMalloc;
 }
 
 }  // namespace
--- chromium-76.0.3809.46/media/filters/source_buffer_stream.cc.gcc8	2019-06-27 23:59:29.000000000 +0200
+++ chromium-76.0.3809.46/media/filters/source_buffer_stream.cc	2019-07-02 03:30:58.185802349 +0200
@@ -670,7 +670,6 @@ bool SourceBufferStream::IsDtsMonotonica
     const BufferQueue& buffers) {
   DCHECK(!buffers.empty());
   DecodeTimestamp prev_dts = last_appended_buffer_decode_timestamp_;
-  bool prev_is_keyframe = last_appended_buffer_is_keyframe_;
   for (BufferQueue::const_iterator itr = buffers.begin();
        itr != buffers.end(); ++itr) {
     DecodeTimestamp current_dts = (*itr)->GetDecodeTimestamp();
@@ -701,7 +700,6 @@ bool SourceBufferStream::IsDtsMonotonica
     }
 
     prev_dts = current_dts;
-    prev_is_keyframe = current_is_keyframe;
   }
   return true;
 }
--- chromium-76.0.3809.46/chrome/browser/banners/app_banner_manager.cc.gcc8	2019-06-27 23:59:05.000000000 +0200
+++ chromium-76.0.3809.46/chrome/browser/banners/app_banner_manager.cc	2019-07-02 04:51:39.588355276 +0200
@@ -653,8 +653,7 @@ bool AppBannerManager::IsRunning() const
 base::string16 AppBannerManager::GetInstallableWebAppName(
     content::WebContents* web_contents) {
   AppBannerManager* manager = FromWebContents(web_contents);
-  if (!manager)
-    return base::string16();
+  if (manager) {
   switch (manager->installable_web_app_check_result_) {
     case InstallableWebAppCheckResult::kUnknown:
     case InstallableWebAppCheckResult::kNo:
@@ -663,6 +662,8 @@ base::string16 AppBannerManager::GetInst
     case InstallableWebAppCheckResult::kPromotable:
       return manager->GetAppName();
   }
+  }
+  return base::string16();  
 }
 
 bool AppBannerManager::IsProbablyPromotableWebApp() const {
@@ -678,6 +679,7 @@ bool AppBannerManager::IsProbablyPromota
     case InstallableWebAppCheckResult::kPromotable:
       return true;
   }
+  return false;
 }
 
 bool AppBannerManager::MaybeConsumeInstallAnimation() {
--- chromium-76.0.3809.46/services/network/public/cpp/host_resolver_mojom_traits.cc.gcc8	2019-07-02 01:53:22.488772803 +0200
+++ chromium-76.0.3809.46/services/network/public/cpp/host_resolver_mojom_traits.cc	2019-07-02 05:04:16.779081053 +0200
@@ -112,8 +112,7 @@ bool ReadDnsOverHttpsServerData(
 
 OptionalSecureDnsMode ToOptionalSecureDnsMode(
     base::Optional<net::DnsConfig::SecureDnsMode> optional) {
-  if (!optional)
-    return OptionalSecureDnsMode::NO_OVERRIDE;
+  if (optional) {
   switch (optional.value()) {
     case net::DnsConfig::SecureDnsMode::OFF:
       return OptionalSecureDnsMode::OFF;
@@ -122,6 +121,8 @@ OptionalSecureDnsMode ToOptionalSecureDn
     case net::DnsConfig::SecureDnsMode::SECURE:
       return OptionalSecureDnsMode::SECURE;
   }
+  }
+  return OptionalSecureDnsMode::NO_OVERRIDE;
 }
 
 }  // namespace
@@ -130,7 +131,7 @@ base::Optional<net::DnsConfig::SecureDns
     OptionalSecureDnsMode mode) {
   switch (mode) {
     case OptionalSecureDnsMode::NO_OVERRIDE:
-      return base::nullopt;
+      break;
     case OptionalSecureDnsMode::OFF:
       return net::DnsConfig::SecureDnsMode::OFF;
     case OptionalSecureDnsMode::AUTOMATIC:
@@ -138,6 +139,7 @@ base::Optional<net::DnsConfig::SecureDns
     case OptionalSecureDnsMode::SECURE:
       return net::DnsConfig::SecureDnsMode::SECURE;
   }
+  return base::nullopt;
 }
 
 // static
--- chromium-76.0.3809.46/components/signin/public/identity_manager/account_info.cc.gcc8	2019-06-27 23:59:19.000000000 +0200
+++ chromium-76.0.3809.46/components/signin/public/identity_manager/account_info.cc	2019-07-02 08:38:27.491124480 +0200
@@ -47,12 +47,12 @@ CoreAccountInfo::~CoreAccountInfo() = de
 
 CoreAccountInfo::CoreAccountInfo(const CoreAccountInfo& other) = default;
 
-CoreAccountInfo::CoreAccountInfo(CoreAccountInfo&& other) noexcept = default;
+CoreAccountInfo::CoreAccountInfo(CoreAccountInfo&& other) = default;
 
 CoreAccountInfo& CoreAccountInfo::operator=(const CoreAccountInfo& other) =
     default;
 
-CoreAccountInfo& CoreAccountInfo::operator=(CoreAccountInfo&& other) noexcept =
+CoreAccountInfo& CoreAccountInfo::operator=(CoreAccountInfo&& other) =
     default;
 
 bool CoreAccountInfo::IsEmpty() const {
@@ -69,7 +69,7 @@ AccountInfo::AccountInfo(AccountInfo&& o
 
 AccountInfo& AccountInfo::operator=(const AccountInfo& other) = default;
 
-AccountInfo& AccountInfo::operator=(AccountInfo&& other) noexcept = default;
+AccountInfo& AccountInfo::operator=(AccountInfo&& other) = default;
 
 bool AccountInfo::IsEmpty() const {
   return CoreAccountInfo::IsEmpty() && hosted_domain.empty() &&
--- chromium-76.0.3809.46/device/vr/util/gamepad_builder.cc.gcc8	2019-06-27 23:59:25.000000000 +0200
+++ chromium-76.0.3809.46/device/vr/util/gamepad_builder.cc	2019-07-02 08:44:30.063698145 +0200
@@ -24,6 +24,7 @@ GamepadHand MojoToGamepadHandedness(devi
   }
 
   NOTREACHED();
+  return GamepadHand::kNone;
 }
 
 }  // anonymous namespace
@@ -55,6 +56,7 @@ bool GamepadBuilder::IsValid() const {
   }
 
   NOTREACHED();
+  return false;
 }
 
 base::Optional<Gamepad> GamepadBuilder::GetGamepad() {
--- chromium-76.0.3809.46/components/history/core/browser/history_types.cc.gcc8	2019-06-27 23:59:17.000000000 +0200
+++ chromium-76.0.3809.46/components/history/core/browser/history_types.cc	2019-07-02 08:51:00.016826460 +0200
@@ -186,7 +186,7 @@ QueryURLResult::QueryURLResult(QueryURLR
 
 QueryURLResult& QueryURLResult::operator=(const QueryURLResult&) = default;
 
-QueryURLResult& QueryURLResult::operator=(QueryURLResult&&) noexcept = default;
+QueryURLResult& QueryURLResult::operator=(QueryURLResult&&) = default;
 
 // MostVisitedURL --------------------------------------------------------------
 
--- chromium-76.0.3809.46/components/signin/core/browser/about_signin_internals.cc.gcc8	2019-07-02 01:53:22.450773482 +0200
+++ chromium-76.0.3809.46/components/signin/core/browser/about_signin_internals.cc	2019-07-02 09:07:57.450074758 +0200
@@ -59,6 +59,7 @@ std::string GetGaiaCookiesStateAsString(
     case GaiaCookiesState::kAllowed:
       return "Allowed";
   }
+  return "";
 }
 
 base::ListValue* AddSection(base::ListValue* parent_list,
--- chromium-76.0.3809.46/content/renderer/frame_swap_message_queue.cc.gcc8	2019-06-27 23:59:23.000000000 +0200
+++ chromium-76.0.3809.46/content/renderer/frame_swap_message_queue.cc	2019-07-02 20:46:46.655060316 +0200
@@ -129,6 +129,7 @@ cc::SwapPromise::DidNotSwapAction FrameS
       // response callbacks itself.
       return cc::SwapPromise::DidNotSwapAction::BREAK_PROMISE;
   }
+  return cc::SwapPromise::DidNotSwapAction::BREAK_PROMISE;
 }
 
 void FrameSwapMessageQueue::DrainMessages(
--- chromium-76.0.3809.46/device/fido/credential_management.cc.gcc8	2019-06-27 23:59:25.000000000 +0200
+++ chromium-76.0.3809.46/device/fido/credential_management.cc	2019-07-02 21:18:35.700132318 +0200
@@ -145,7 +145,7 @@ base::Optional<CredentialsMetadataRespon
   if (it == response_map.end() || !it->second.is_unsigned()) {
     return base::nullopt;
   }
-  const int64_t existing_count = it->second.GetUnsigned();
+  const uint64_t existing_count = uint64_t(it->second.GetUnsigned());
   if (existing_count > std::numeric_limits<size_t>::max()) {
     return base::nullopt;
   }
@@ -157,7 +157,7 @@ base::Optional<CredentialsMetadataRespon
   if (it == response_map.end() || !it->second.is_unsigned()) {
     return base::nullopt;
   }
-  const int64_t remaining_count = it->second.GetUnsigned();
+  const uint64_t remaining_count = uint64_t(it->second.GetUnsigned());
   if (remaining_count > std::numeric_limits<size_t>::max()) {
     return base::nullopt;
   }
@@ -189,7 +189,7 @@ base::Optional<EnumerateRPsResponse> Enu
   }
   if (expect_rp_count) {
     if (it == response_map.end() || !it->second.is_unsigned() ||
-        it->second.GetUnsigned() > std::numeric_limits<size_t>::max()) {
+        uint64_t(it->second.GetUnsigned()) > std::numeric_limits<size_t>::max()) {
       return base::nullopt;
     }
     rp_count = static_cast<size_t>(it->second.GetUnsigned());
@@ -293,7 +293,7 @@ EnumerateCredentialsResponse::Parse(
     it = response_map.find(cbor::Value(
         static_cast<int>(CredentialManagementResponseKey::kTotalCredentials)));
     if (it == response_map.end() || !it->second.is_unsigned() ||
-        it->second.GetUnsigned() > std::numeric_limits<size_t>::max()) {
+        uint64_t(it->second.GetUnsigned()) > std::numeric_limits<size_t>::max()) {
       return base::nullopt;
     }
     credential_count = static_cast<size_t>(it->second.GetUnsigned());
--- chromium-76.0.3809.46/device/fido/device_response_converter.cc.gcc8	2019-06-27 23:59:25.000000000 +0200
+++ chromium-76.0.3809.46/device/fido/device_response_converter.cc	2019-07-02 21:23:54.832514238 +0200
@@ -406,6 +406,7 @@ static base::Optional<std::string> FixIn
       return base::nullopt;
     }
   }
+  return base::nullopt;
 }
 
 typedef bool (*PathPredicate)(const std::vector<const cbor::Value*>&);
@@ -488,6 +489,7 @@ static base::Optional<cbor::Value> FixIn
       return cbor::Value(new_map);
     }
   }
+  return base::nullopt;
 }
 
 // ContainsInvalidUTF8 returns true if any element of |v| (recursively) contains
@@ -530,6 +532,7 @@ static bool ContainsInvalidUTF8(const cb
       return false;
     }
   }
+  return false;
 }
 
 base::Optional<cbor::Value> FixInvalidUTF8(cbor::Value in,
--- chromium-76.0.3809.46/device/fido/virtual_ctap2_device.cc.gcc8	2019-06-27 23:59:25.000000000 +0200
+++ chromium-76.0.3809.46/device/fido/virtual_ctap2_device.cc	2019-07-02 21:32:36.679270326 +0200
@@ -856,6 +856,7 @@ CtapDeviceResponseCode VirtualCtap2Devic
               case CredProtect::kUVRequired:
                 return !user_verified;
             }
+	    return false;
           }),
       found_registrations.end());
 
--- chromium-76.0.3809.46/storage/browser/fileapi/obfuscated_file_util_memory_delegate.cc.gcc8	2019-06-27 23:59:34.000000000 +0200
+++ chromium-76.0.3809.46/storage/browser/fileapi/obfuscated_file_util_memory_delegate.cc	2019-07-02 22:09:50.604979383 +0200
@@ -512,8 +512,8 @@ base::File::Error ObfuscatedFileUtilMemo
 
   // |size_t| limits the maximum size that the memory file can keep and |int|
   // limits the maximum size that base::ReadFile function reads.
-  if (source_info.size > std::numeric_limits<size_t>::max() ||
-      source_info.size > std::numeric_limits<int>::max()) {
+  if (uint64_t(source_info.size) > std::numeric_limits<size_t>::max() ||
+      uint64_t(source_info.size) > std::numeric_limits<int>::max()) {
     return base::File::FILE_ERROR_NO_SPACE;
   }
 
--- chromium-76.0.3809.46/third_party/blink/renderer/core/editing/commands/insert_paragraph_separator_command.cc.gcc8	2019-06-27 23:59:38.000000000 +0200
+++ chromium-76.0.3809.46/third_party/blink/renderer/core/editing/commands/insert_paragraph_separator_command.cc	2019-07-02 23:33:01.266250287 +0200
@@ -596,8 +596,7 @@ void InsertParagraphSeparatorCommand::Do
                  ->CollapseWhiteSpace())
           << position_after_split;
       DeleteInsignificantTextDownstream(position_after_split);
-      if (auto* is_text_node =
-              DynamicTo<Text>(position_after_split.AnchorNode())) {
+      if (DynamicTo<Text>(position_after_split.AnchorNode())) {
         InsertTextIntoNode(
             To<Text>(position_after_split.ComputeContainerNode()), 0,
             NonBreakingSpaceString());
--- chromium-76.0.3809.46/third_party/blink/renderer/core/layout/layout_text.cc.gcc8	2019-06-27 23:59:38.000000000 +0200
+++ chromium-76.0.3809.46/third_party/blink/renderer/core/layout/layout_text.cc	2019-07-03 00:37:29.459935571 +0200
@@ -538,9 +538,6 @@ void LayoutText::AbsoluteQuadsForRange(V
     // Find fragments that have text for the specified range.
     DCHECK_LE(start, end);
     auto fragments = NGPaintFragment::InlineFragmentsFor(this);
-    const LayoutBlock* block_for_flipping = nullptr;
-    if (UNLIKELY(HasFlippedBlocksWritingMode()))
-      block_for_flipping = ContainingBlock();
     for (const NGPaintFragment* fragment : fragments) {
       const auto& text_fragment =
           To<NGPhysicalTextFragment>(fragment->PhysicalFragment());
--- chromium-76.0.3809.46/third_party/blink/renderer/core/layout/ng/inline/ng_inline_item_result.cc.gcc8	2019-06-27 23:59:38.000000000 +0200
+++ chromium-76.0.3809.46/third_party/blink/renderer/core/layout/ng/inline/ng_inline_item_result.cc	2019-07-03 00:49:36.598274733 +0200
@@ -130,6 +130,7 @@ bool NGLineInfo::ShouldHangTrailingSpace
       return IsRtl(BaseDirection());
   }
   NOTREACHED();
+  return false;
 }
 
 void NGLineInfo::UpdateTextAlign() {
--- chromium-76.0.3809.46/third_party/blink/renderer/core/streams/readable_stream_reader.cc.gcc8	2019-06-27 23:59:39.000000000 +0200
+++ chromium-76.0.3809.46/third_party/blink/renderer/core/streams/readable_stream_reader.cc	2019-07-03 20:06:54.460085077 +0200
@@ -158,6 +158,7 @@ StreamPromiseResolver* ReadableStreamRea
       // 7. Return ! stream.[[readableStreamController]].[[PullSteps]]().
       return stream->GetController()->PullSteps(script_state);
   }
+  return nullptr;
 }
 
 void ReadableStreamReader::GenericRelease(ScriptState* script_state,
--- chromium-76.0.3809.46/third_party/blink/renderer/modules/xr/type_converters.cc.gcc8	2019-06-27 23:59:40.000000000 +0200
+++ chromium-76.0.3809.46/third_party/blink/renderer/modules/xr/type_converters.cc	2019-07-03 21:11:21.303497866 +0200
@@ -12,12 +12,13 @@ TypeConverter<base::Optional<blink::XRPl
     Convert(const device::mojom::blink::XRPlaneOrientation& orientation) {
   switch (orientation) {
     case device::mojom::blink::XRPlaneOrientation::UNKNOWN:
-      return base::nullopt;
+      break;
     case device::mojom::blink::XRPlaneOrientation::HORIZONTAL:
       return blink::XRPlane::Orientation::kHorizontal;
     case device::mojom::blink::XRPlaneOrientation::VERTICAL:
       return blink::XRPlane::Orientation::kVertical;
   }
+  return base::nullopt;
 }
 
 blink::TransformationMatrix
--- chromium-76.0.3809.46/chrome/browser/page_load_metrics/protocol_util.cc.gcc8	2019-06-27 23:59:08.000000000 +0200
+++ chromium-76.0.3809.46/chrome/browser/page_load_metrics/protocol_util.cc	2019-07-06 04:45:36.417596190 +0200
@@ -17,7 +17,7 @@ NetworkProtocol GetNetworkProtocol(
     case net::HttpResponseInfo::CONNECTION_INFO_HTTP0_9:
     case net::HttpResponseInfo::CONNECTION_INFO_HTTP1_0:
     case net::HttpResponseInfo::NUM_OF_CONNECTION_INFOS:
-      return NetworkProtocol::kOther;
+      break;
     case net::HttpResponseInfo::CONNECTION_INFO_HTTP1_1:
       return NetworkProtocol::kHttp11;
     case net::HttpResponseInfo::CONNECTION_INFO_HTTP2:
@@ -43,6 +43,7 @@ NetworkProtocol GetNetworkProtocol(
     case net::HttpResponseInfo::CONNECTION_INFO_QUIC_999:
       return NetworkProtocol::kQuic;
   }
+  return NetworkProtocol::kOther;
 }
 
 }  // namespace page_load_metrics
--- chromium-76.0.3809.46/chrome/browser/media/router/providers/openscreen/platform/logging.cc.gcc8	2019-06-27 23:59:07.000000000 +0200
+++ chromium-76.0.3809.46/chrome/browser/media/router/providers/openscreen/platform/logging.cc	2019-07-06 05:43:16.188456264 +0200
@@ -21,8 +21,9 @@ namespace {
     case LogLevel::kError:
       return ::logging::LOG_ERROR;
     case LogLevel::kFatal:
-      return ::logging::LOG_FATAL;
+      break;
   }
+  return ::logging::LOG_FATAL;
 }
 
 }  // namespace
--- chromium-76.0.3809.46/chrome/browser/media/router/providers/cast/cast_session_client.cc.gcc8	2019-06-27 23:59:07.000000000 +0200
+++ chromium-76.0.3809.46/chrome/browser/media/router/providers/cast/cast_session_client.cc	2019-07-06 05:47:13.570299525 +0200
@@ -97,6 +97,7 @@ bool CastSessionClientImpl::MatchesAutoJ
     case AutoJoinPolicy::kOriginScoped:
       return other_origin == origin();
   }
+  return false;
 }
 
 void CastSessionClientImpl::OnMessage(
--- chromium-76.0.3809.46/chrome/browser/ui/send_tab_to_self/send_tab_to_self_sub_menu_model.cc.gcc8	2019-06-27 23:59:10.000000000 +0200
+++ chromium-76.0.3809.46/chrome/browser/ui/send_tab_to_self/send_tab_to_self_sub_menu_model.cc	2019-07-06 05:59:16.038627472 +0200
@@ -73,6 +73,7 @@ const std::string MenuTypeToString(SendT
     default:
       NOTREACHED();
   }
+  return "";
 }
 
 }  // namespace
--- chromium-76.0.3809.46/chrome/browser/ui/views/profiles/profile_menu_view_base.cc.gcc8	2019-06-27 23:59:11.000000000 +0200
+++ chromium-76.0.3809.46/chrome/browser/ui/views/profiles/profile_menu_view_base.cc	2019-07-06 06:20:29.020307080 +0200
@@ -204,7 +204,7 @@ void ProfileMenuViewBase::Reset() {
 int ProfileMenuViewBase::GetMarginSize(GroupMarginSize margin_size) const {
   switch (margin_size) {
     case kNone:
-      return 0;
+      break;
     case kTiny:
       return ChromeLayoutProvider::Get()->GetDistanceMetric(
           DISTANCE_CONTENT_LIST_VERTICAL_SINGLE);
@@ -215,6 +215,7 @@ int ProfileMenuViewBase::GetMarginSize(G
       return ChromeLayoutProvider::Get()->GetDistanceMetric(
           DISTANCE_UNRELATED_CONTROL_VERTICAL_LARGE);
   }
+  return 0;
 }
 
 void ProfileMenuViewBase::AddMenuGroup(bool add_separator) {
--- chromium-76.0.3809.46/chrome/browser/ui/autofill/payments/save_card_bubble_controller_impl.cc.gcc8	2019-07-05 22:21:44.677969996 +0200
+++ chromium-76.0.3809.46/chrome/browser/ui/autofill/payments/save_card_bubble_controller_impl.cc	2019-07-06 06:58:39.322238222 +0200
@@ -261,8 +261,9 @@ base::string16 SaveCardBubbleControllerI
       return l10n_util::GetStringUTF16(IDS_AUTOFILL_FAILURE_BUBBLE_TITLE);
     case BubbleType::INACTIVE:
       NOTREACHED();
-      return base::string16();
+      break;
   }
+  return base::string16();
 }
 
 base::string16 SaveCardBubbleControllerImpl::GetExplanatoryMessage() const {
--- chromium-76.0.3809.46/chrome/browser/ui/views/tabs/tab_strip_layout.cc.gcc8	2019-06-27 23:59:11.000000000 +0200
+++ chromium-76.0.3809.46/chrome/browser/ui/views/tabs/tab_strip_layout.cc	2019-07-06 07:13:08.410006513 +0200
@@ -28,6 +28,7 @@ int TabSizer::CalculateTabWidth(const Ta
           space_fraction_available_, tab.GetLayoutCrossoverWidth(),
           tab.GetPreferredWidth()));
   }
+  return 0;
 }
 
 bool TabSizer::TabAcceptsExtraSpace(const TabWidthConstraints& tab) const {
@@ -39,6 +40,7 @@ bool TabSizer::TabAcceptsExtraSpace(cons
     case LayoutDomain::kInactiveWidthEqualsActiveWidth:
       return tab.GetLayoutCrossoverWidth() < tab.GetPreferredWidth();
   }
+  return false;
 }
 
 bool TabSizer::IsAlreadyPreferredWidth() const {
--- chromium-76.0.3809.46/chrome/common/media_router/providers/cast/cast_media_source.cc.gcc8	2019-06-27 23:59:12.000000000 +0200
+++ chromium-76.0.3809.46/chrome/common/media_router/providers/cast/cast_media_source.cc	2019-07-06 07:21:19.540409448 +0200
@@ -297,12 +297,13 @@ bool IsAutoJoinAllowed(AutoJoinPolicy po
                        int tab_id2) {
   switch (policy) {
     case AutoJoinPolicy::kPageScoped:
-      return false;
+      break;
     case AutoJoinPolicy::kTabAndOriginScoped:
       return origin1 == origin2 && tab_id1 == tab_id2;
     case AutoJoinPolicy::kOriginScoped:
       return origin1 == origin2;
   }
+  return false;
 }
 
 CastAppInfo::CastAppInfo(
--- chromium-76.0.3809.46/components/omnibox/browser/autocomplete_match.cc.gcc8	2019-07-05 22:21:44.776968302 +0200
+++ chromium-76.0.3809.46/components/omnibox/browser/autocomplete_match.cc	2019-07-06 07:52:49.356260956 +0200
@@ -378,8 +378,9 @@ base::string16 AutocompleteMatch::GetWhy
     case Type::TAB_SEARCH_DEPRECATED:
     case Type::NUM_TYPES:
       NOTREACHED();
-      return base::string16();
+      break;
   }
+  return base::string16();
 }
 
 // static
--- chromium-76.0.3809.46/content/browser/accessibility/browser_accessibility.cc.gcc8	2019-07-05 22:21:44.776968302 +0200
+++ chromium-76.0.3809.46/content/browser/accessibility/browser_accessibility.cc	2019-07-06 08:36:50.713473424 +0200
@@ -85,6 +85,7 @@ int GetBoundaryTextOffsetInsideBaseAncho
     case ui::AXTextBoundaryDirection::kForwards:
       return base->CreatePositionAtEndOfAnchor()->text_offset();
   }
+  return 0;
 }
 
 }  // namespace
--- chromium-76.0.3809.46/content/browser/permissions/permission_controller_impl.cc.gcc8	2019-06-27 23:59:22.000000000 +0200
+++ chromium-76.0.3809.46/content/browser/permissions/permission_controller_impl.cc	2019-07-06 08:48:16.625189492 +0200
@@ -70,6 +70,7 @@ PermissionToSchedulingFeature(Permission
     case PermissionType::NUM:
       return base::nullopt;
   }
+  return base::nullopt;
 }
 
 void NotifySchedulerAboutPermissionRequest(RenderFrameHost* render_frame_host,
--- chromium-76.0.3809.46/content/browser/devtools/devtools_background_services_context_impl.cc.gcc8	2019-06-27 23:59:22.000000000 +0200
+++ chromium-76.0.3809.46/content/browser/devtools/devtools_background_services_context_impl.cc	2019-07-06 08:53:50.754213204 +0200
@@ -56,6 +56,7 @@ constexpr devtools::proto::BackgroundSer
     case DevToolsBackgroundService::kPeriodicBackgroundSync:
       return devtools::proto::PERIODIC_BACKGROUND_SYNC;
   }
+  return devtools::proto::BACKGROUND_FETCH;
 }
 
 }  // namespace
--- chromium-76.0.3809.46/content/browser/scheduler/browser_task_queues.cc.gcc8	2019-06-27 23:59:22.000000000 +0200
+++ chromium-76.0.3809.46/content/browser/scheduler/browser_task_queues.cc	2019-07-06 09:04:59.804259110 +0200
@@ -64,6 +64,7 @@ const char* GetUITaskQueueName(BrowserTa
     case BrowserTaskQueues::QueueType::kUserVisible:
       return "ui_user_visible_tq";
   }
+  return "";
 }
 
 const char* GetIOTaskQueueName(BrowserTaskQueues::QueueType queue_type) {
@@ -81,6 +82,7 @@ const char* GetIOTaskQueueName(BrowserTa
     case BrowserTaskQueues::QueueType::kUserVisible:
       return "io_user_visible_tq";
   }
+  return "";
 }
 
 const char* GetTaskQueueName(BrowserThread::ID thread_id,
--- chromium-76.0.3809.46/content/browser/indexed_db/indexed_db_transaction.cc.gcc8	2019-06-27 23:59:22.000000000 +0200
+++ chromium-76.0.3809.46/content/browser/indexed_db/indexed_db_transaction.cc	2019-07-06 18:06:53.234685509 +0200
@@ -257,8 +257,7 @@ void IndexedDBTransaction::EnsureBacking
 leveldb::Status IndexedDBTransaction::BlobWriteComplete(
     IndexedDBBackingStore::BlobWriteResult result) {
   IDB_TRACE("IndexedDBTransaction::BlobWriteComplete");
-  if (state_ == FINISHED)  // aborted
-    return leveldb::Status::OK();
+  if (state_ != FINISHED) {  // aborted
   DCHECK_EQ(state_, COMMITTING);
 
   switch (result) {
@@ -275,6 +274,8 @@ leveldb::Status IndexedDBTransaction::Bl
     }
   }
   NOTREACHED();
+  }
+  return leveldb::Status::OK();
 }
 
 leveldb::Status IndexedDBTransaction::Commit() {
--- chromium-76.0.3809.46/content/browser/indexed_db/scopes/disjoint_range_lock_manager.cc.gcc8	2019-07-06 18:14:35.649597261 +0200
+++ chromium-76.0.3809.46/content/browser/indexed_db/scopes/disjoint_range_lock_manager.cc	2019-07-06 18:14:48.023380822 +0200
@@ -19,7 +19,7 @@ DisjointRangeLockManager::LockRequest::L
     : requested_type(type),
       locks_holder(std::move(locks_holder)),
       acquired_callback(std::move(acquired_callback)) {}
-DisjointRangeLockManager::LockRequest::LockRequest(LockRequest&&) noexcept =
+DisjointRangeLockManager::LockRequest::LockRequest(LockRequest&&) =
     default;
 DisjointRangeLockManager::LockRequest::~LockRequest() = default;
 DisjointRangeLockManager::Lock::Lock() = default;
--- chromium-76.0.3809.46/ui/accessibility/ax_node_position.cc.gcc8	2019-06-28 00:00:16.000000000 +0200
+++ chromium-76.0.3809.46/ui/accessibility/ax_node_position.cc	2019-07-06 19:01:14.266430629 +0200
@@ -93,7 +93,6 @@ base::stack<AXNode*> AXNodePosition::Get
   base::stack<AXNode*> anchors;
   AXNode* current_anchor = GetAnchor();
 
-  int32_t current_anchor_id = GetAnchor()->id();
   AXTreeID current_tree_id = this->tree_id();
 
   int32_t parent_anchor_id = INVALID_ANCHOR_ID;
@@ -105,7 +104,6 @@ base::stack<AXNode*> AXNodePosition::Get
         current_anchor /*child*/, current_tree_id /*child_tree_id*/,
         &parent_tree_id /*parent_tree_id*/, &parent_anchor_id /*parent_id*/);
 
-    current_anchor_id = parent_anchor_id;
     current_tree_id = parent_tree_id;
   }
   return anchors;
--- chromium-76.0.3809.46/ui/accessibility/ax_text_boundary.cc.gcc8	2019-06-28 00:00:16.000000000 +0200
+++ chromium-76.0.3809.46/ui/accessibility/ax_text_boundary.cc	2019-07-06 19:03:41.205847997 +0200
@@ -41,6 +41,7 @@ std::string ToString(const AXTextBoundar
     case AXTextBoundary::kWordStartOrEnd:
       return "WordStartOrEndBoundary";
   }
+  return "";
 }
 
 std::ostream& operator<<(std::ostream& stream, const AXTextBoundary& boundary) {
--- chromium-76.0.3809.46/ui/accessibility/platform/ax_platform_text_boundary.cc.gcc8	2019-06-28 00:00:16.000000000 +0200
+++ chromium-76.0.3809.46/ui/accessibility/platform/ax_platform_text_boundary.cc	2019-07-06 19:11:35.635414535 +0200
@@ -25,6 +25,7 @@ AXTextBoundary FromAtkTextBoundary(AtkTe
     case ATK_TEXT_BOUNDARY_LINE_END:
       return AXTextBoundary::kLineEnd;
   }
+  return AXTextBoundary::kCharacter;
 }
 
 #if ATK_CHECK_VERSION(2, 10, 0)
@@ -42,6 +43,7 @@ AXTextBoundary FromAtkTextGranularity(At
     case ATK_TEXT_GRANULARITY_PARAGRAPH:
       return AXTextBoundary::kParagraphStart;
   }
+  return AXTextBoundary::kCharacter;
 }
 #endif  // ATK_CHECK_VERSION(2, 10, 0)
 #endif  // BUILDFLAG(USE_ATK)