Implement TextureImageTransportSurface using texture mailbox

content/browser/renderer_host/render_widget_host_impl.h

Index: content/browser/renderer_host/render_widget_host_impl.h
diff --git a/content/browser/renderer_host/render_widget_host_impl.h b/content/browser/renderer_host/render_widget_host_impl.h
index d3fb531d11402ed42756baa524144ae334d34fc3..f7cb330b613dd2578667e7f610de4e36e7f8fe98 100644
--- a/content/browser/renderer_host/render_widget_host_impl.h
+++ b/content/browser/renderer_host/render_widget_host_impl.h
@@ -394,7 +394,7 @@ class CONTENT_EXPORT RenderWidgetHostImpl : virtual public RenderWidgetHost,
   static void AcknowledgeBufferPresent(
       int32 route_id,
       int gpu_host_id,
-      bool presented,
+      uint64 surface_handle,
       uint32 sync_point);
 
   // Called by the view in response to AcceleratedSurfaceBuffersSwapped for
@@ -407,15 +407,6 @@ class CONTENT_EXPORT RenderWidgetHostImpl : virtual public RenderWidgetHost,
   // Called by the view when the parent changes. If a parent isn't available,
   // NULL is used.
   void ParentChanged(gfx::NativeViewId new_parent);
-
-  // Called by the view in response to visibility changes:
-  // 1. After the front surface is guarenteed to no longer be in use by the ui
-  //    (protected false),
-  // 2. When the ui expects to have a valid front surface (protected true).
-  static void SendFrontSurfaceIsProtected(bool is_protected,
-                                          uint32 protection_state_id,
-                                          int32 route_id,
-                                          int gpu_host_id);
 #endif
 
   // Signals that the compositing surface was updated, e.g. after a lost context