Remove runtime toggling of throttling frames

cc/test/proxy_impl_for_test.h

 // Copyright 2015 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_TEST_PROXY_IMPL_FOR_TEST_H_
 #define CC_TEST_PROXY_IMPL_FOR_TEST_H_
 
 #include "base/macros.h"
 #include "cc/test/test_hooks.h"
 #include "cc/trees/proxy_impl.h"
@@ skipping 31 matching lines @@
                    scoped_ptr<BeginFrameSource> external_begin_frame_source);
 
   void ScheduledActionSendBeginMainFrame(const BeginFrameArgs& args) override;
   DrawResult ScheduledActionDrawAndSwapIfPossible() override;
   void ScheduledActionCommit() override;
   void ScheduledActionBeginOutputSurfaceCreation() override;
   void ScheduledActionPrepareTiles() override;
   void ScheduledActionInvalidateOutputSurface() override;
   void SendBeginMainFrameNotExpectedSoon() override;
   void DidActivateSyncTree() override;
-  void SetThrottleFrameProductionOnImpl(bool throttle) override;
   void InitializeOutputSurfaceOnImpl(OutputSurface* output_surface) override;
   void MainThreadHasStoppedFlingingOnImpl() override;
   void SetInputThrottledUntilCommitOnImpl(bool is_throttled) override;
   void UpdateTopControlsStateOnImpl(TopControlsState constraints,
                                     TopControlsState current,
                                     bool animate) override;
   void SetDeferCommitsOnImpl(bool defer_commits) const override;
   void BeginMainFrameAbortedOnImpl(
       CommitEarlyOutReason reason,
       base::TimeTicks main_thread_start_time) override;
   void SetNeedsRedrawOnImpl(const gfx::Rect& damage_rect) override;
   void SetNeedsCommitOnImpl() override;
   void FinishAllRenderingOnImpl(CompletionEvent* completion) override;
   void SetVisibleOnImpl(bool visible) override;
   void ReleaseOutputSurfaceOnImpl(CompletionEvent* completion) override;
   void FinishGLOnImpl(CompletionEvent* completion) override;
   void StartCommitOnImpl(CompletionEvent* completion,
                          LayerTreeHost* layer_tree_host,
                          base::TimeTicks main_thread_start_time,
                          bool hold_commit_for_activation) override;
 
   TestHooks* test_hooks_;
 };
 
 }  // namespace cc
 
 #endif  // CC_TEST_PROXY_IMPL_FOR_TEST_H_