Revert 236150 "Disable Vsync when Aero Glass is enabled."

trunk/src/content/common/gpu/image_transport_surface.cc

Index: trunk/src/content/common/gpu/image_transport_surface.cc
===================================================================
--- trunk/src/content/common/gpu/image_transport_surface.cc	(revision 236879)
+++ trunk/src/content/common/gpu/image_transport_surface.cc	(working copy)
@@ -19,10 +19,6 @@
 #include "ui/gl/gl_implementation.h"
 #include "ui/gl/gl_switches.h"
 
-#if defined(OS_WIN)
-#include "ui/base/win/shell.h"
-#endif
-
 namespace content {
 
 ImageTransportSurface::ImageTransportSurface() {}
@@ -168,14 +164,6 @@
 }
 
 void ImageTransportHelper::SetSwapInterval(gfx::GLContext* context) {
-#if defined(OS_WIN)
-  // If Aero Glass is enabled, then the renderer will handle ratelimiting and
-  // there's no tearing, so waiting for vsync is unnecessary.
-  if (ui::win::IsAeroGlassEnabled()) {
-    context->SetSwapInterval(0);
-    return;
-  }
-#endif
   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kDisableGpuVsync))
     context->SetSwapInterval(0);
   else