cc: Trigger GPU rasterization based on a per-layer hint

content/browser/renderer_host/render_process_host_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 895 matching lines @@
   return storage_partition_impl_;
 }
 
 static void AppendGpuCommandLineFlags(CommandLine* command_line) {
   if (content::IsThreadedCompositingEnabled())
     command_line->AppendSwitch(switches::kEnableThreadedCompositing);
 
   if (content::IsDelegatedRendererEnabled())
     command_line->AppendSwitch(switches::kEnableDelegatedRenderer);
 
+  if (content::IsImplSidePaintingEnabled())
+    command_line->AppendSwitch(switches::kEnableImplSidePainting);
+
   // Appending disable-gpu-feature switches due to software rendering list.
   GpuDataManagerImpl* gpu_data_manager = GpuDataManagerImpl::GetInstance();
   DCHECK(gpu_data_manager);
   gpu_data_manager->AppendRendererCommandLine(command_line);
 }
 
 void RenderProcessHostImpl::AppendRendererCommandLine(
     CommandLine* command_line) const {
   // Pass the process type first, so it shows first in process listings.
   command_line->AppendSwitchASCII(switches::kProcessType,
@@ skipping 55 matching lines @@
     switches::kDisableDatabases,
     switches::kDisableDelegatedRenderer,
     switches::kDisableDesktopNotifications,
     switches::kDisableDirectNPAPIRequests,
     switches::kDisableFileSystem,
     switches::kDisableFiltersOverIPC,
     switches::kDisableGpu,
     switches::kDisableGpuCompositing,
     switches::kDisableGpuVsync,
     switches::kDisableHistogramCustomizer,
+    switches::kDisableImplSidePainting,
+    switches::kDisableLCDText,
     switches::kDisableLayerSquashing,
     switches::kDisableLocalStorage,
     switches::kDisableLogging,
+    switches::kDisableMapImage,
     switches::kDisableOpusPlayback,
     switches::kDisableOverlayScrollbar,
     switches::kDisablePinch,
     switches::kDisablePrefixedEncryptedMedia,
     switches::kDisableRepaintAfterLayout,
     switches::kDisableSeccompFilterSandbox,
     switches::kDisableSessionStorage,
     switches::kDisableSharedWorkers,
     switches::kDisableSpeechInput,
     switches::kDisableThreadedCompositing,
@@ skipping 22 matching lines @@
     switches::kEnableEncryptedMedia,
     switches::kEnableExperimentalCanvasFeatures,
     switches::kEnableExperimentalWebPlatformFeatures,
     switches::kEnableExperimentalWebSocket,
     switches::kEnableFastTextAutosizing,
     switches::kEnableGPUClientLogging,
     switches::kEnableGpuClientTracing,
     switches::kEnableGPUServiceLogging,
     switches::kEnableHighDpiCompositingForFixedPosition,
     switches::kEnableHTMLImports,
+    switches::kEnableImplSidePainting,
     switches::kEnableInbandTextTracks,
+    switches::kEnableLCDText,
     switches::kEnableLayerSquashing,
     switches::kEnableLogging,
     switches::kEnableMP3StreamParser,
+    switches::kEnableMapImage,
     switches::kEnableMemoryBenchmarking,
     switches::kEnableOverlayFullscreenVideo,
     switches::kEnableOverlayScrollbar,
     switches::kEnableOverscrollNotifications,
     switches::kEnablePinch,
     switches::kEnablePreparsedJsCaching,
     switches::kEnablePruneGpuCommandBuffers,
     switches::kEnableRepaintAfterLayout,
     switches::kEnableServiceWorker,
     switches::kEnableSkiaBenchmarking,
@@ skipping 18 matching lines @@
     switches::kJavaScriptFlags,
     switches::kLoggingLevel,
     switches::kMaxUntiledLayerWidth,
     switches::kMaxUntiledLayerHeight,
     switches::kMemoryMetrics,
     switches::kNoReferrers,
     switches::kNoSandbox,
     switches::kNumRasterThreads,
     switches::kPpapiInProcess,
     switches::kProfilerTiming,
+    switches::kRasterizationSite,
     switches::kReduceSecurityForTesting,
     switches::kRegisterPepperPlugins,
     switches::kRendererAssertTest,
     switches::kRendererStartupDialog,
     switches::kShowPaintRects,
     switches::kSitePerProcess,
     switches::kStatsCollectionController,
     switches::kTestSandbox,
     switches::kTouchEvents,
     switches::kTraceToConsole,
     switches::kUseDiscardableMemory,
     // This flag needs to be propagated to the renderer process for
     // --in-process-webgl.
     switches::kUseGL,
     switches::kUseMobileUserAgent,
     switches::kUserAgent,
     switches::kV,
     switches::kVideoThreads,
     switches::kVModule,
     switches::kWebGLCommandBufferSizeKb,
     // Please keep these in alphabetical order. Compositor switches here should
     // also be added to chrome/browser/chromeos/login/chrome_restart_request.cc.
     cc::switches::kBackgroundColorInsteadOfCheckerboard,
     cc::switches::kCompositeToMailbox,
     cc::switches::kDisableCompositedAntialiasing,
     cc::switches::kDisableCompositorTouchHitTesting,
-    cc::switches::kDisableGPURasterization,
-    cc::switches::kDisableImplSidePainting,
-    cc::switches::kDisableLCDText,
-    cc::switches::kDisableMapImage,
     cc::switches::kDisableThreadedAnimation,
     cc::switches::kEnableGpuBenchmarking,
-    cc::switches::kEnableGPURasterization,
-    cc::switches::kEnableImplSidePainting,
-    cc::switches::kEnableLCDText,
-    cc::switches::kEnableMapImage,
     cc::switches::kEnablePinchVirtualViewport,
     cc::switches::kEnableTopControlsPositionCalculation,
     cc::switches::kMaxTilesForInterestArea,
     cc::switches::kMaxUnusedResourceMemoryUsagePercentage,
     cc::switches::kShowCompositedLayerBorders,
     cc::switches::kShowFPSCounter,
     cc::switches::kShowLayerAnimationBounds,
     cc::switches::kShowNonOccludingRects,
     cc::switches::kShowOccludingRects,
     cc::switches::kShowPropertyChangedRects,
@@ skipping 63 matching lines @@
   // Disable databases in incognito mode.
   if (GetBrowserContext()->IsOffTheRecord() &&
       !browser_cmd.HasSwitch(switches::kDisableDatabases)) {
     renderer_cmd->AppendSwitch(switches::kDisableDatabases);
 #if defined(OS_ANDROID)
     renderer_cmd->AppendSwitch(switches::kDisableMediaHistoryLogging);
 #endif
   }
 
   // Enforce the extra command line flags for impl-side painting.
-  if (cc::switches::IsImplSidePaintingEnabled() &&
+  if (IsImplSidePaintingEnabled() &&
       !browser_cmd.HasSwitch(switches::kEnableDeferredImageDecoding))
     renderer_cmd->AppendSwitch(switches::kEnableDeferredImageDecoding);
 }
 
 base::ProcessHandle RenderProcessHostImpl::GetHandle() const {
   if (run_renderer_in_process())
     return base::Process::Current().handle();
 
   if (!child_process_launcher_.get() || child_process_launcher_->IsStarting())
     return base::kNullProcessHandle;
@@ skipping 887 matching lines @@
 
 void RenderProcessHostImpl::DecrementWorkerRefCount() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK_GT(worker_ref_count_, 0);
   --worker_ref_count_;
   if (worker_ref_count_ == 0)
     Cleanup();
 }
 
 }  // namespace content