--- chromium-73.0.3683.75/media/learning/common/labelled_example.cc.gcc8	2019-03-11 23:00:59.000000000 +0100
+++ chromium-73.0.3683.75/media/learning/common/labelled_example.cc	2019-03-16 22:24:12.068011327 +0100
@@ -17,7 +17,7 @@ LabelledExample::LabelledExample(std::in
 
 LabelledExample::LabelledExample(const LabelledExample& rhs) = default;
 
-LabelledExample::LabelledExample(LabelledExample&& rhs) noexcept = default;
+LabelledExample::LabelledExample(LabelledExample&& rhs) = default;
 
 LabelledExample::~LabelledExample() = default;
 
--- chromium-73.0.3683.75/third_party/webrtc/pc/dtls_transport.cc.gcc8	2019-03-11 23:08:14.000000000 +0100
+++ chromium-73.0.3683.75/third_party/webrtc/pc/dtls_transport.cc	2019-03-17 17:09:41.262096771 +0100
@@ -31,9 +31,9 @@ DtlsTransportState TranslateState(cricke
       return DtlsTransportState::kClosed;
       break;
     case cricket::DTLS_TRANSPORT_FAILED:
-      return DtlsTransportState::kFailed;
       break;
   }
+  return DtlsTransportState::kFailed;
 }
 
 }  // namespace
--- chromium-73.0.3683.75/third_party/webrtc/modules/audio_processing/audio_processing_impl.cc.gcc8	2019-03-11 23:08:08.000000000 +0100
+++ chromium-73.0.3683.75/third_party/webrtc/modules/audio_processing/audio_processing_impl.cc	2019-03-17 17:41:37.256312669 +0100
@@ -123,9 +123,9 @@ NoiseSuppression::Level NsConfigLevelToI
       return NoiseSuppression::Level::kHigh;
     case NsConfig::kVeryHigh:
       return NoiseSuppression::Level::kVeryHigh;
-    default:
-      RTC_NOTREACHED();
   }
+  RTC_NOTREACHED();
+  return NoiseSuppression::Level::kLow;
 }
 
 GainControl::Mode Agc1ConfigModeToInterfaceMode(
--- chromium-73.0.3683.75/media/audio/audio_input_device.cc.gcc8	2019-03-11 23:00:59.000000000 +0100
+++ chromium-73.0.3683.75/media/audio/audio_input_device.cc	2019-03-17 18:22:38.765345928 +0100
@@ -51,8 +51,9 @@ base::ThreadPriority ThreadPriorityFromP
     case AudioInputDevice::Purpose::kUserInput:
       return base::ThreadPriority::REALTIME_AUDIO;
     case AudioInputDevice::Purpose::kLoopback:
-      return base::ThreadPriority::NORMAL;
+      break;
   }
+  return base::ThreadPriority::NORMAL;
 }
 
 }  // namespace
--- chromium-73.0.3683.75/media/base/supported_types.cc.gcc8	2019-03-17 18:44:50.562746764 +0100
+++ chromium-73.0.3683.75/media/base/supported_types.cc	2019-03-17 18:54:33.504821670 +0100
@@ -186,6 +186,8 @@ bool IsAudioCodecProprietary(AudioCodec
     case kUnknownAudioCodec:
       return false;
   }
+  NOTREACHED();
+  return true;
 }
 
 bool IsDefaultSupportedAudioType(const AudioType& type) {
@@ -257,6 +259,8 @@ bool IsVideoCodecProprietary(VideoCodec
     case kCodecAV1:
       return false;
   }
+  NOTREACHED();
+  return true;
 }
 
 // TODO(chcunningham): Add platform specific logic for Android (move from
--- chromium-73.0.3683.75/components/previews/core/previews_lite_page_redirect.cc.gcc8	2019-03-11 23:00:57.000000000 +0100
+++ chromium-73.0.3683.75/components/previews/core/previews_lite_page_redirect.cc	2019-03-17 19:05:27.524601525 +0100
@@ -16,7 +16,7 @@ std::string ServerLitePageStatusToString
     case ServerLitePageStatus::kUnknown:
       // Unknown penalty metrics are not recorded.
       NOTREACHED();
-      return "Unknown";
+      break;
     case ServerLitePageStatus::kSuccess:
       return "Success";
     case ServerLitePageStatus::kBypass:
@@ -30,6 +30,7 @@ std::string ServerLitePageStatusToString
       NOTREACHED();
       return "Control";
   }
+  return "Unknown";
 }
 
 bool IsLitePageRedirectPreviewDomain(const GURL& url) {
--- chromium-73.0.3683.75/net/dns/host_resolver_mdns_listener_impl.cc.gcc8	2019-03-11 23:01:01.000000000 +0100
+++ chromium-73.0.3683.75/net/dns/host_resolver_mdns_listener_impl.cc	2019-03-17 19:27:38.168722885 +0100
@@ -25,6 +25,7 @@ HostResolver::MdnsListener::Delegate::Up
     case net::MDnsListener::RECORD_REMOVED:
       return HostResolver::MdnsListener::Delegate::UpdateType::REMOVED;
   }
+  return net::HostResolver::MdnsListener::Delegate::UpdateType(0);
 }
 
 }  // namespace
--- chromium-73.0.3683.75/net/dns/host_resolver_mdns_task.cc.gcc8	2019-03-11 23:01:01.000000000 +0100
+++ chromium-73.0.3683.75/net/dns/host_resolver_mdns_task.cc	2019-03-17 19:29:16.803025405 +0100
@@ -219,6 +219,7 @@ HostCache::Entry HostResolverMdnsTask::P
       return ParseHostnameResult(parsed->rdata<SrvRecordRdata>()->target(),
                                  parsed->rdata<SrvRecordRdata>()->port());
   }
+  return HostCache::Entry(ERR_FAILED, HostCache::Entry::SOURCE_UNKNOWN);
 }
 
 void HostResolverMdnsTask::CheckCompletion(bool post_needed) {
--- chromium-73.0.3683.75/cc/trees/layer_tree_host.cc.gcc8	2019-03-11 23:00:52.000000000 +0100
+++ chromium-73.0.3683.75/cc/trees/layer_tree_host.cc	2019-03-17 19:34:15.025887235 +0100
@@ -1157,8 +1157,10 @@ void LayerTreeHost::SetViewportSizeAndSc
     float device_scale_factor,
     const viz::LocalSurfaceIdAllocation&
         local_surface_id_allocation_from_parent) {
+#if defined(OS_MACOSX)
   const viz::LocalSurfaceId previous_local_surface_id =
       local_surface_id_allocation_from_parent_.local_surface_id();
+#endif
   SetLocalSurfaceIdAllocationFromParent(
       local_surface_id_allocation_from_parent);
 
--- chromium-73.0.3683.75/services/media_session/audio_focus_manager.cc.gcc8	2019-03-11 23:01:01.000000000 +0100
+++ chromium-73.0.3683.75/services/media_session/audio_focus_manager.cc	2019-03-17 19:52:48.908690179 +0100
@@ -312,8 +312,9 @@ bool AudioFocusManager::ShouldSessionBeS
       return false;
     case mojom::EnforcementMode::kDefault:
       NOTIMPLEMENTED();
-      return false;
+      break;
   }
+  return false;
 }
 
 bool AudioFocusManager::ShouldSessionBeDucked(
@@ -329,8 +330,9 @@ bool AudioFocusManager::ShouldSessionBeD
       return false;
     case mojom::EnforcementMode::kDefault:
       NOTIMPLEMENTED();
-      return false;
+      break;
   }
+  return false;
 }
 
 void AudioFocusManager::EnforceSingleSession(AudioFocusRequest* session,
--- chromium-73.0.3683.75/components/autofill/core/browser/webdata/autofill_wallet_metadata_sync_bridge.cc.gcc8-5	2019-03-17 16:29:17.913280114 +0100
+++ chromium-73.0.3683.75/components/autofill/core/browser/webdata/autofill_wallet_metadata_sync_bridge.cc	2019-03-17 20:17:22.060274195 +0100
@@ -280,8 +280,9 @@ bool UpdateServerMetadata(AutofillTable*
       return table->UpdateServerCardMetadata(metadata);
     case WalletMetadataSpecifics::UNKNOWN:
       NOTREACHED();
-      return false;
+      break;
   }
+  return false;
 }
 
 }  // namespace
--- chromium-73.0.3683.75/components/download/internal/common/download_item_impl.cc.gcc8-5	2019-03-17 16:29:19.104259012 +0100
+++ chromium-73.0.3683.75/components/download/internal/common/download_item_impl.cc	2019-03-17 20:25:57.404313744 +0100
@@ -593,7 +593,7 @@ void DownloadItemImpl::UpdateResumptionI
     bytes_wasted_ = 0;
   }
 
-  auto_resume_count_ = user_resume ? 0 : ++auto_resume_count_;
+  auto_resume_count_ = user_resume ? 0 : auto_resume_count_+1;
 }
 
 void DownloadItemImpl::Cancel(bool user_cancel) {
--- chromium-73.0.3683.75/components/invalidation/public/invalidator_state.cc.gcc8	2019-03-11 23:00:56.000000000 +0100
+++ chromium-73.0.3683.75/components/invalidation/public/invalidator_state.cc	2019-03-17 20:27:30.702671478 +0100
@@ -27,6 +27,7 @@ const char* InvalidatorStateToString(Inv
     case NOT_STARTED_NO_REFRESH_TOKEN:
       return "NOT_STARTED_NO_REFRESH_TOKEN";
   }
+  return "";
 }
 
 }  // namespace syncer
--- chromium-73.0.3683.75/services/network/public/cpp/host_resolver_mojom_traits.cc.gcc8-5	2019-03-17 16:29:20.281238158 +0100
+++ chromium-73.0.3683.75/services/network/public/cpp/host_resolver_mojom_traits.cc	2019-03-17 20:35:22.596375800 +0100
@@ -370,6 +370,7 @@ EnumTraits<MdnsListenClient::UpdateType,
     case net::HostResolver::MdnsListener::Delegate::UpdateType::REMOVED:
       return MdnsListenClient::UpdateType::REMOVED;
   }
+  return MdnsListenClient::UpdateType::CHANGED;
 }
 
 // static
@@ -388,6 +389,7 @@ bool EnumTraits<MdnsListenClient::Update
       *output = net::HostResolver::MdnsListener::Delegate::UpdateType::REMOVED;
       return true;
   }
+  return false;
 }
 
 // static
--- chromium-73.0.3683.75/components/invalidation/impl/fcm_network_handler.cc.gcc8	2019-03-11 23:00:56.000000000 +0100
+++ chromium-73.0.3683.75/components/invalidation/impl/fcm_network_handler.cc	2019-03-17 20:43:19.481009130 +0100
@@ -288,6 +288,7 @@ std::string FCMNetworkHandlerDiagnostic:
     case instance_id::InstanceID::NETWORK_ERROR:
       return "InstanceID::NETWORK_ERROR";
   }
+  return "";
 }
 
 }  // namespace syncer
--- chromium-73.0.3683.75/components/signin/internal/identity_manager/mutable_profile_oauth2_token_service_delegate.cc.gcc8	2019-03-11 23:00:57.000000000 +0100
+++ chromium-73.0.3683.75/components/signin/internal/identity_manager/mutable_profile_oauth2_token_service_delegate.cc	2019-03-17 20:49:48.146201385 +0100
@@ -292,8 +292,9 @@ bool MutableProfileOAuth2TokenServiceDel
     case GaiaAuthConsumer::TokenRevocationStatus::kInvalidToken:
     case GaiaAuthConsumer::TokenRevocationStatus::kInvalidRequest:
     case GaiaAuthConsumer::TokenRevocationStatus::kUnknownError:
-      return false;
+      break;
   }
+  return false;
 }
 
 void MutableProfileOAuth2TokenServiceDelegate::RevokeServerRefreshToken::
--- chromium-73.0.3683.75/ui/accessibility/mojom/ax_tree_id_mojom_traits.h.gcc8	2019-03-11 23:01:18.000000000 +0100
+++ chromium-73.0.3683.75/ui/accessibility/mojom/ax_tree_id_mojom_traits.h	2019-03-17 21:04:36.260411552 +0100
@@ -16,10 +16,11 @@ struct UnionTraits<ax::mojom::AXTreeIDDa
   static ax::mojom::AXTreeIDDataView::Tag GetTag(const ui::AXTreeID& p) {
     switch (p.type()) {
       case ax::mojom::AXTreeIDType::kUnknown:
-        return ax::mojom::AXTreeIDDataView::Tag::UNKNOWN;
+        break;
       case ax::mojom::AXTreeIDType::kToken:
         return ax::mojom::AXTreeIDDataView::Tag::TOKEN;
     }
+    return ax::mojom::AXTreeIDDataView::Tag::UNKNOWN;
   }
   static uint8_t unknown(const ui::AXTreeID& p) { return 0; }
   static const base::UnguessableToken token(const ui::AXTreeID& p) {
--- chromium-73.0.3683.75/ui/views/layout/flex_layout_types.cc.gcc8	2019-03-11 23:01:19.000000000 +0100
+++ chromium-73.0.3683.75/ui/views/layout/flex_layout_types.cc	2019-03-17 21:25:16.948916466 +0100
@@ -59,6 +59,7 @@ int InterpolateSize(MinimumFlexSizeRule
     case MaximumFlexSizeRule::kUnbounded:
       return available_size;
   }
+  return 0;
 }
 
 // A view's minimum size can in some cases be expensive to compute. This
--- chromium-73.0.3683.75/chrome/browser/apps/platform_apps/audio_focus_web_contents_observer.h.gcc8	2019-03-11 23:00:53.000000000 +0100
+++ chromium-73.0.3683.75/chrome/browser/apps/platform_apps/audio_focus_web_contents_observer.h	2019-03-17 21:44:42.711684224 +0100
@@ -22,7 +22,6 @@ class AudioFocusWebContentsObserver
 
  private:
   friend class content::WebContentsUserData<AudioFocusWebContentsObserver>;
-  friend class AudioFocusWebContentsObserver;
   friend class AudioFocusWebContentsObserverBrowserTest;
 
   explicit AudioFocusWebContentsObserver(content::WebContents*);
--- chromium-73.0.3683.75/components/safe_browsing/content/browser/threat_details.cc.gcc8	2019-03-11 23:00:57.000000000 +0100
+++ chromium-73.0.3683.75/components/safe_browsing/content/browser/threat_details.cc	2019-03-17 22:50:32.914419357 +0100
@@ -115,8 +115,9 @@ ClientSafeBrowsingReportRequest::ReportT
       // Gated by SafeBrowsingBlockingPage::ShouldReportThreatDetails.
       NOTREACHED() << "We should not send report for threat type: "
                    << threat_type;
-      return ClientSafeBrowsingReportRequest::UNKNOWN;
+      break;
   }
+  return ClientSafeBrowsingReportRequest::UNKNOWN;
 }
 
 // Clears the specified HTTPS resource of any sensitive data, only retaining
--- chromium-73.0.3683.75/content/browser/cache_storage/cache_storage_cache_entry_handler.cc.gcc8	2019-03-11 23:00:57.000000000 +0100
+++ chromium-73.0.3683.75/content/browser/cache_storage/cache_storage_cache_entry_handler.cc	2019-03-17 23:06:10.861905396 +0100
@@ -364,6 +364,7 @@ CacheStorageCacheEntryHandler::CreateCac
           std::move(blob_storage_context));
   }
   NOTREACHED();
+  return nullptr;
 }
 
 blink::mojom::SerializedBlobPtr CacheStorageCacheEntryHandler::CreateBlob(
--- chromium-73.0.3683.75/content/browser/media/hardware_key_media_controller.cc.gcc8	2019-03-11 23:00:57.000000000 +0100
+++ chromium-73.0.3683.75/content/browser/media/hardware_key_media_controller.cc	2019-03-17 23:20:53.762650819 +0100
@@ -194,6 +194,7 @@ HardwareKeyMediaController::MediaSession
     case MediaSessionAction::kExitPictureInPicture:
       return base::nullopt;
   }
+  return base::nullopt;
 }
 
 }  // namespace content
--- chromium-73.0.3683.75/content/browser/cache_storage/cache_storage_histogram_utils.cc.gcc8	2019-03-11 23:00:57.000000000 +0100
+++ chromium-73.0.3683.75/content/browser/cache_storage/cache_storage_histogram_utils.cc	2019-03-17 23:40:14.543806924 +0100
@@ -34,6 +34,7 @@ base::StringPiece UMAToName(CacheStorage
     case CacheStorageSchedulerUMA::kQueueLength:
       RETURN_LITERAL_STRING_PIECE("QueueLength");
   }
+  return "";
 }
 
 base::StringPiece ClientToName(CacheStorageSchedulerClient client_type) {
@@ -45,6 +46,7 @@ base::StringPiece ClientToName(CacheStor
     case CacheStorageSchedulerClient::kStorage:
       RETURN_LITERAL_STRING_PIECE("CacheStorage");
   }
+  return "";
 }
 
 bool ShouldRecordOpUMA(CacheStorageSchedulerOp op_type) {
@@ -83,12 +85,13 @@ base::StringPiece OpToName(CacheStorageS
       RETURN_LITERAL_STRING_PIECE("SizeThenClose");
     case CacheStorageSchedulerOp::kTest:
       NOTREACHED();
-      return "";
+      break;
     case CacheStorageSchedulerOp::kWriteIndex:
       RETURN_LITERAL_STRING_PIECE("WriteIndex");
     case CacheStorageSchedulerOp::kWriteSideData:
       RETURN_LITERAL_STRING_PIECE("WriteSideData");
   }
+  return "";
 }
 
 std::string GetClientHistogramName(CacheStorageSchedulerUMA uma_type,
--- chromium-73.0.3683.75/third_party/blink/renderer/modules/mediastream/media_stream_constraints_util_audio.cc.gcc8-5	2019-03-17 16:29:20.433235465 +0100
+++ chromium-73.0.3683.75/third_party/blink/renderer/modules/mediastream/media_stream_constraints_util_audio.cc	2019-03-18 02:02:58.536812396 +0100
@@ -994,6 +994,7 @@ class ProcessingBasedContainer {
             GetMinMaxLatenciesForAudioParameters(device_parameters);
         return DoubleRangeSet(min_latency, max_latency);
     }
+    return DoubleRangeSet();
   }
 
   // The priority of each processing-based container depends on the default
@@ -1014,6 +1015,7 @@ class ProcessingBasedContainer {
       case ProcessingType::kApmProcessed:
         return use_processing_by_default ? 3 : 1;
     }
+    return 0;
   }
 
   ProcessingType processing_type_;
--- chromium-73.0.3683.75/third_party/blink/renderer/core/layout/ng/ng_out_of_flow_layout_part.cc.gcc8	2019-03-11 23:01:03.000000000 +0100
+++ chromium-73.0.3683.75/third_party/blink/renderer/core/layout/ng/ng_out_of_flow_layout_part.cc	2019-03-18 04:09:21.642290612 +0100
@@ -765,8 +765,8 @@ bool NGOutOfFlowLayoutPart::IsContaining
   // closest parent block flow.
   if (candidate.inline_container) {
     DCHECK(
-        candidate.node.Style().GetPosition() == EPosition::kAbsolute &&
-            candidate.inline_container->CanContainAbsolutePositionObjects() ||
+        (candidate.node.Style().GetPosition() == EPosition::kAbsolute &&
+            candidate.inline_container->CanContainAbsolutePositionObjects()) ||
         (candidate.node.Style().GetPosition() == EPosition::kFixed &&
          candidate.inline_container->CanContainFixedPositionObjects()));
     return container_builder_->GetLayoutObject() ==
--- chromium-73.0.3683.75/third_party/blink/renderer/core/trustedtypes/trusted_types_util.cc.gcc8	2019-03-11 23:01:03.000000000 +0100
+++ chromium-73.0.3683.75/third_party/blink/renderer/core/trustedtypes/trusted_types_util.cc	2019-03-18 04:50:55.458016032 +0100
@@ -243,6 +243,7 @@ String GetStringFromSpecificTrustedType(
                                            execution_context, exception_state);
     }
   }
+  return g_empty_string;
 }
 
 String GetStringFromSpecificTrustedType(
--- chromium-73.0.3683.75/third_party/blink/renderer/platform/fonts/opentype/open_type_caps_support.cc.gcc8	2019-03-11 23:01:04.000000000 +0100
+++ chromium-73.0.3683.75/third_party/blink/renderer/platform/fonts/opentype/open_type_caps_support.cc	2019-03-18 22:35:49.814430618 +0100
@@ -152,8 +152,8 @@ OpenTypeCapsSupport::FontFormat OpenType
                             hb_blob_get_length(mort_blob.get());
     bool has_gsub = hb_ot_layout_has_substitution(hb_face);
     font_format_ = has_morx_or_mort&& !has_gsub
-                       ? font_format_ = FontFormat::kAat
-                       : font_format_ = FontFormat::kOpenType;
+                       ? FontFormat::kAat
+                       : FontFormat::kOpenType;
   }
   return font_format_;
 }
--- chromium-73.0.3683.75/third_party/blink/renderer/platform/graphics/canvas_resource_provider.cc.gcc8	2019-03-11 23:01:04.000000000 +0100
+++ chromium-73.0.3683.75/third_party/blink/renderer/platform/graphics/canvas_resource_provider.cc	2019-03-18 22:43:19.959852726 +0100
@@ -664,6 +664,8 @@ const Vector<CanvasResourceType>& GetRes
                     kCompositedFallbackList.begin(),
                     kCompositedFallbackList.end()));
 
+  static const Vector<CanvasResourceType>	kEmptyFallbackList;
+
   switch (usage) {
     case CanvasResourceProvider::ResourceUsage::kSoftwareResourceUsage:
       return kSoftwareFallbackList;
@@ -688,6 +690,7 @@ const Vector<CanvasResourceType>& GetRes
       return kEmptyList;
   }
   NOTREACHED();
+  return kEmptyFallbackList;
 }
 
 }  // unnamed namespace