Remove default begin frame sources from the renderer

cc/surfaces/display.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_DISPLAY_H_
 #define CC_SURFACES_DISPLAY_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 66 matching lines @@
   void SetExternalClip(const gfx::Rect& clip);
   void SetExternalViewport(const gfx::Rect& viewport);
   void SetOutputIsSecure(bool secure);
 
   const SurfaceId& CurrentSurfaceId();
 
   // DisplaySchedulerClient implementation.
   bool DrawAndSwap() override;
 
   // OutputSurfaceClient implementation.
-  void CommitVSyncParameters(base::TimeTicks timebase,
-                             base::TimeDelta interval) override;
   void SetBeginFrameSource(BeginFrameSource* source) override;
   void SetNeedsRedrawRect(const gfx::Rect& damage_rect) override;
   void DidSwapBuffersComplete() override;
   void DidReceiveTextureInUseResponses(
       const gpu::TextureInUseResponses& responses) override;
   void ReclaimResources(const ReturnedResourceArray& resources) override;
   void DidLoseOutputSurface() override;
   void SetExternalTilePriorityConstraints(
       const gfx::Rect& viewport_rect,
       const gfx::Transform& transform) override;
@@ skipping 44 matching lines @@
   SoftwareRenderer* software_renderer_ = nullptr;
   std::vector<ui::LatencyInfo> stored_latency_info_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(Display);
 };
 
 }  // namespace cc
 
 #endif  // CC_SURFACES_DISPLAY_H_