Adding SatisfySequence and RequireSequence to SurfaceManager

cc/surfaces/surface_manager.h

 // Copyright 2014 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_SURFACES_SURFACE_MANAGER_H_
 #define CC_SURFACES_SURFACE_MANAGER_H_
 
 #include <stdint.h>
 
 #include <list>
@@ skipping 45 matching lines @@
   void RemoveObserver(SurfaceObserver* obs) {
     observer_list_.RemoveObserver(obs);
   }
 
   bool SurfaceModified(const SurfaceId& surface_id);
 
   // Called when a CompositorFrame is submitted to a SurfaceFactory for a given
   // |surface_id| for the first time.
   void SurfaceCreated(const SurfaceInfo& surface_info);
 
-  // A frame for a surface satisfies a set of sequence numbers in a particular
-  // id namespace.
-  void DidSatisfySequences(const FrameSinkId& frame_sink_id,
-                           std::vector<uint32_t>* sequence);
+  // Require that the given sequence number must be satisfied (using
+  // SatisfySequence) before the given surface can be destroyed.
+  void RequireSequence(const SurfaceId& surface_id,
+                       const SurfaceSequence& sequence);
+
+  // Satisfies the given sequence number. Once all sequence numbers that
+  // a surface depends on are satisfied, the surface can be destroyed.
+  void SatisfySequence(const SurfaceSequence& sequence);
 
   void RegisterFrameSinkId(const FrameSinkId& frame_sink_id);
 
   // Invalidate a frame_sink_id that might still have associated sequences,
   // possibly because a renderer process has crashed.
   void InvalidateFrameSinkId(const FrameSinkId& frame_sink_id);
 
   // SurfaceFactoryClient, hierarchy, and BeginFrameSource can be registered
   // and unregistered in any order with respect to each other.
   //
@@ skipping 125 matching lines @@
   scoped_refptr<SurfaceReferenceFactory> reference_factory_;
 
   base::WeakPtrFactory<SurfaceManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SurfaceManager);
 };
 
 }  // namespace cc
 
 #endif  // CC_SURFACES_SURFACE_MANAGER_H_