cc: Move scheduling logic out of OutputSurface

cc/output/begin_frame_args.h

 // Copyright 2013 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_BEGIN_FRAME_ARGS_H_
 #define CC_OUTPUT_BEGIN_FRAME_ARGS_H_
 
 #include "base/time/time.h"
 #include "cc/base/cc_export.h"
 
@@ skipping 31 matching lines @@
   base::TimeTicks frame_time;
   base::TimeTicks deadline;
   base::TimeDelta interval;
 
  private:
   BeginFrameArgs(base::TimeTicks frame_time,
                  base::TimeTicks deadline,
                  base::TimeDelta interval);
 };
 
+class CC_EXPORT BeginFrameSourceClient {

[brianderson, 2014/04/23 21:10:02]

This isn't actually used anymore. Will delete.

+ protected:
+  virtual ~BeginFrameSourceClient() {}
+
+ public:
+  virtual void BeginFrame(const BeginFrameArgs& args) = 0;
+};
+
 }  // namespace cc
 
 #endif  // CC_OUTPUT_BEGIN_FRAME_ARGS_H_