cc: Add initial GPU-to-GPU copy rasterizer implementation.

ui/compositor/compositor_switches.cc

Index: ui/compositor/compositor_switches.cc
diff --git a/ui/compositor/compositor_switches.cc b/ui/compositor/compositor_switches.cc
index d63b269e2ed7c637a6c2115573eb73b062a0b2e6..a7ffc1465a0f9f2abc55e420857912ff931f6709 100644
--- a/ui/compositor/compositor_switches.cc
+++ b/ui/compositor/compositor_switches.cc
@@ -19,7 +19,7 @@ const char kUIDisableThreadedCompositing[] = "ui-disable-threaded-compositing";
 
 const char kUIEnableImplSidePainting[] = "ui-enable-impl-side-painting";
 
-const char kUIEnableMapImage[] = "ui-enable-map-image";
+const char kUIEnableZeroCopy[] = "ui-enable-zero-copy";
 
 const char kUIShowPaintRects[] = "ui-show-paint-rects";
 
@@ -33,10 +33,10 @@ bool IsUIImplSidePaintingEnabled() {
   return command_line.HasSwitch(switches::kUIEnableImplSidePainting);
 }
 
-bool IsUIMapImageEnabled() {
+bool IsUIZeroCopyEnabled() {
   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
 
-  return command_line.HasSwitch(switches::kUIEnableMapImage);
+  return command_line.HasSwitch(switches::kUIEnableZeroCopy);
 }
 
 }  // namespace ui