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

content/public/common/content_switches.cc

Index: content/public/common/content_switches.cc
diff --git a/content/public/common/content_switches.cc b/content/public/common/content_switches.cc
index 583f50a3768f5730b4207f7da09b6768874d9179..1890f43b4ef0cdd35f1e791b04e42b1b72e0642b 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -228,6 +228,10 @@ const char kDisableHangMonitor[]            = "disable-hang-monitor";
 // Disable the RenderThread's HistogramCustomizer.
 const char kDisableHistogramCustomizer[]    = "disable-histogram-customizer";
 
+// Paint content on the main thread instead of the compositor thread.
+// Overrides the kEnableImplSidePainting flag.
+const char kDisableImplSidePainting[]       = "disable-impl-side-painting";
+
 // Prevent Java from running.
 const char kDisableJava[]                   = "disable-java";
 
@@ -243,6 +247,9 @@ const char kDisableKillAfterBadIPC[]        = "disable-kill-after-bad-ipc";
 const char kDisablePrefixedEncryptedMedia[] =
     "disable-prefixed-encrypted-media";
 
+// Disables LCD text.
+const char kDisableLCDText[]                = "disable-lcd-text";
+
 // Disable LocalStorage.
 const char kDisableLocalStorage[]           = "disable-local-storage";
 
@@ -250,6 +257,10 @@ const char kDisableLocalStorage[]           = "disable-local-storage";
 // builds.
 const char kDisableLogging[]                = "disable-logging";
 
+// Disable rasterizer that writes directly to GPU memory.
+// Overrides the kEnableMapImage flag.
+const char kDisableMapImage[]               = "disable-map-image";
+
 // Disables overlay scrollbars on Aura or Linux. Does nothing on Mac.
 const char kDisableOverlayScrollbar[]       = "disable-overlay-scrollbar";
 
@@ -358,6 +369,9 @@ const char kEnableAcceleratedFixedRootBackground[] =
 const char kEnableAcceleratedOverflowScroll[] =
     "enable-accelerated-overflow-scroll";
 
+// Enables LCD text.
+const char kEnableLCDText[]                 = "enable-lcd-text";
+
 // Enables experimental feature that maps multiple RenderLayers to
 // one composited layer to avoid pathological layer counts.
 const char kEnableLayerSquashing[] =
@@ -467,6 +481,9 @@ const char kEnableHighResolutionTime[]      = "enable-high-resolution-time";
 // Enable HTML Imports
 extern const char kEnableHTMLImports[]      = "enable-html-imports";
 
+// Paint content on the compositor thread instead of the main thread.
+const char kEnableImplSidePainting[]        = "enable-impl-side-painting";
+
 // Enables support for inband text tracks in media content.
 const char kEnableInbandTextTracks[]        = "enable-inband-text-tracks";
 
@@ -474,6 +491,9 @@ const char kEnableInbandTextTracks[]        = "enable-inband-text-tracks";
 // builds.
 const char kEnableLogging[]                 = "enable-logging";
 
+// Enable rasterizer that writes directly to GPU memory.
+const char kEnableMapImage[]                = "enable-map-image";
+
 // Enables the memory benchmarking extension
 const char kEnableMemoryBenchmarking[]      = "enable-memory-benchmarking";
 
@@ -765,6 +785,12 @@ const char kProcessPerTab[]                 = "process-per-tab";
 // renderer or plugin host.  If it's empty, it's the browser.
 const char kProcessType[]                   = "type";
 
+// Select the location used for drawing layer tiles. Allowed values are
+// 'cpu' (rasterize on the CPU only), 'gpu' (always use the Skia GPU backend
+// for rasterization), and 'hybrid' (use hints and heuristics to determine
+// when to rasterize using the Skia GPU backend).
+const char kRasterizationSite[]             = "rasterization-site";
+
 // Enables more web features over insecure connections. Designed to be used
 // for testing purposes only.
 const char kReduceSecurityForTesting[]      = "reduce-security-for-testing";