Add callback when queueing frame on Surface to create backpressure.

When a frame is queued on a surface, a callback can queued that will be called when that surface is used to draw a frame. This can be used to create backpressure on renderers or the browser compositor.

BUG=

Review URL: https://codereview.chromium.org/465673003

Cr-Commit-Position: refs/heads/master@{#291605}

1 files changed, 5 insertions, 1 deletions

diff --git a/cc/surfaces/surface_factory.h b/cc/surfaces/surface_factory.h
index c74f973..fafa53c54 100644
--- a/cc/surfaces/surface_factory.h
+++ b/cc/surfaces/surface_factory.h
@@ -5,6 +5,7 @@
 #ifndef CC_SURFACES_SURFACE_FACTORY_H_
 #define CC_SURFACES_SURFACE_FACTORY_H_
 
+#include "base/callback_forward.h"
 #include "base/containers/scoped_ptr_hash_map.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
@@ -37,7 +38,10 @@ class CC_SURFACES_EXPORT SurfaceFactory
   void Destroy(SurfaceId surface_id);
   // A frame can only be submitted to a surface created by this factory,
   // although the frame may reference surfaces created by other factories.
-  void SubmitFrame(SurfaceId surface_id, scoped_ptr<CompositorFrame> frame);
+  // The callback is called the first time this frame is used to draw.
+  void SubmitFrame(SurfaceId surface_id,
+                   scoped_ptr<CompositorFrame> frame,
+                   const base::Closure& callback);
 
   SurfaceFactoryClient* client() { return client_; }