Revert of Remove default begin frame sources from the renderer

cc/output/output_surface_client.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_CLIENT_H_
 #define CC_OUTPUT_OUTPUT_SURFACE_CLIENT_H_
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/time/time.h"
 #include "cc/base/cc_export.h"
 #include "cc/output/context_provider.h"
 #include "cc/resources/returned_resource.h"
 #include "gpu/command_buffer/common/texture_in_use_response.h"
 #include "ui/gfx/geometry/rect.h"
 
 namespace gfx {
 class Transform;
 }
 
 namespace cc {
 
 class BeginFrameSource;
 struct ManagedMemoryPolicy;
 
 class CC_EXPORT OutputSurfaceClient {
  public:
+  // TODO(enne): Remove this in favor of using SetBeginFrameSource.
+  virtual void CommitVSyncParameters(base::TimeTicks timebase,
+                                     base::TimeDelta interval) = 0;
   // Pass the begin frame source for the client to observe.  Client does not own
   // the BeginFrameSource.  OutputSurface should call this once after binding to
   // the client and then call again with a null while detaching.
   virtual void SetBeginFrameSource(BeginFrameSource* source) = 0;
 
   virtual void SetNeedsRedrawRect(const gfx::Rect& damage_rect) = 0;
   // For LayerTreeHostImpl, this is more of a OnSwapBuffersAck from the display
   // compositor that it received and will use the frame, unblocking it from
   // producing more frames.
   // For the display compositor this is literally a notification that the swap
@@ skipping 17 matching lines @@
                       const gfx::Rect& viewport,
                       bool resourceless_software_draw) = 0;
 
  protected:
   virtual ~OutputSurfaceClient() {}
 };
 
 }  // namespace cc
 
 #endif  // CC_OUTPUT_OUTPUT_SURFACE_CLIENT_H_