cc: Allow DeferredInitialize to use DelegatingRenderer

cc/output/output_surface.h

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_OUTPUT_OUTPUT_SURFACE_H_
 #define CC_OUTPUT_OUTPUT_SURFACE_H_
 
 #include <deque>
 
 #include "base/basictypes.h"
@@ skipping 87 matching lines @@
   // (namely Android WebView), this is called to determine whether the software
   // device should be used on the current frame.
   virtual bool ForcedDrawToSoftwareDevice() const;
 
   // Called by the compositor on the compositor thread. This is a place where
   // thread-specific data for the output surface can be initialized, since from
   // this point on the output surface will only be used on the compositor
   // thread.
   virtual bool BindToClient(OutputSurfaceClient* client);
 
+  // This is called by the compositor on the compositor thread inside ReleaseGL
+  // in order to release the ContextProvider.

[danakj, 2014/05/20 23:09:11]

Mention only valid with deferred_gl?

[boliu, 2014/05/20 23:31:38]

Done.

+  void ReleaseContextProvider();
+
   // Enable or disable vsync.
   void SetThrottleFrameProduction(bool enable);
 
   virtual void EnsureBackbuffer();
   virtual void DiscardBackbuffer();
 
   virtual void Reshape(const gfx::Size& size, float scale_factor);
   virtual gfx::Size SurfaceSize() const;
 
   virtual void BindFramebuffer();
@@ skipping 68 matching lines @@
   std::deque<unsigned> available_gpu_latency_query_ids_;
   std::deque<unsigned> pending_gpu_latency_query_ids_;
   RollingTimeDeltaHistory gpu_latency_history_;
 
   DISALLOW_COPY_AND_ASSIGN(OutputSurface);
 };
 
 }  // namespace cc
 
 #endif  // CC_OUTPUT_OUTPUT_SURFACE_H_