Revert 122205 - Allow GPU process to present to the compositing surface without the involvement of the UI thread.

This is to prevent a potential deadlock and so I can revert this:
https://chromiumcodereview.appspot.com/9295021

BUG=111514

Review URL: http://codereview.chromium.org/9380019

TBR=apatrick@chromium.org
Review URL: https://chromiumcodereview.appspot.com/9347062

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@122218 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 0 insertions, 14 deletions

diff --git a/content/browser/gpu/gpu_surface_tracker.h b/content/browser/gpu/gpu_surface_tracker.h
index a38095a..98b4eed 100644
--- a/content/browser/gpu/gpu_surface_tracker.h
+++ b/content/browser/gpu/gpu_surface_tracker.h
@@ -11,7 +11,6 @@
 #include "base/memory/singleton.h"
 #include "base/synchronization/lock.h"
 #include "ui/gfx/native_widget_types.h"
-#include "ui/gfx/size.h"
 
 // This class is responsible for managing rendering surfaces exposed to the
 // GPU process. Every surface gets registered to this class, and gets an ID.
@@ -58,19 +57,6 @@ class GpuSurfaceTracker {
   // Note: This is an O(log N) lookup.
   gfx::GLSurfaceHandle GetSurfaceHandle(int surface_id);
 
-#if defined(OS_WIN) && !defined(USE_AURA)
-  // This is a member of GpuSurfaceTracker because it holds the lock for its
-  // duration. This prevents the AcceleratedSurface that it posts to from being
-  // destroyed by the main thread during that time. This function is only called
-  // on the IO thread. This function only posts tasks asynchronously. If it
-  // were to synchronously call the UI thread, there would be a possiblity of
-  // deadlock.
-  void AsyncPresentAndAcknowledge(int surface_id,
-                                  const gfx::Size& size,
-                                  int64 surface_handle,
-                                  const base::Closure& completion_task);
-#endif
-
   // Gets the global instance of the surface tracker. Identical to Get(), but
   // named that way for the implementation of Singleton.
   static GpuSurfaceTracker* GetInstance();