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

chrome/browser/about_flags.cc

Index: chrome/browser/about_flags.cc
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index ad0e6cd7c64506f591b6d7a8e5b82aa488f3a795..ff5b7d03bea9d5a1f81e075b73eb029c71962eee 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -324,6 +324,16 @@ const Experiment::Choice kNumRasterThreadsChoices[] = {
   { IDS_FLAGS_NUM_RASTER_THREADS_FOUR, switches::kNumRasterThreads, "4" }
 };
 
+const Experiment::Choice kEnableGPURasterizationChoices[] = {
+  { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
+  { IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED,
+    cc::switches::kEnableGPURasterization, ""},
+  { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
+    cc::switches::kDisableGPURasterization, ""},
+  { IDS_FLAGS_GPU_RASTERIZATION_FOR_ALL_LAYERS,
+    cc::switches::kEnableUniversalGPURasterization, ""}
+};
+
 // We're using independent flags here (as opposed to a common flag with
 // different values) to be able to enable/disable the entire experience
 // associated with this feature server-side from the FieldTrial (the complete
@@ -880,7 +890,7 @@ const Experiment kExperiments[] = {
     IDS_FLAGS_ENABLE_GPU_RASTERIZATION_NAME,
     IDS_FLAGS_ENABLE_GPU_RASTERIZATION_DESCRIPTION,
     kOsAndroid,
-    SINGLE_VALUE_TYPE(cc::switches::kEnableGPURasterization)
+    MULTI_VALUE_TYPE(kEnableGPURasterizationChoices)
   },
   {
     "enable-experimental-web-platform-features",