Removing GL context rate limiting feature and related wrappers

cc/trees/thread_proxy.cc

 // Copyright 2011 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.
 
 #include "cc/trees/thread_proxy.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/auto_reset.h"
@@ skipping 590 matching lines @@
                    impl_thread_weak_ptr_,
                    &completion));
     completion.Wait();
   }
 
   main().weak_factory.InvalidateWeakPtrs();
   blocked_main().layer_tree_host = NULL;
   main().started = false;
 }
 
-void ThreadProxy::ForceSerializeOnSwapBuffers() {
-  DebugScopedSetMainThreadBlocked main_thread_blocked(this);
-  CompletionEvent completion;
-  Proxy::ImplThreadTaskRunner()->PostTask(
-      FROM_HERE,
-      base::Bind(&ThreadProxy::ForceSerializeOnSwapBuffersOnImplThread,
-                 impl_thread_weak_ptr_,
-                 &completion));
-  completion.Wait();
-}
-
-void ThreadProxy::ForceSerializeOnSwapBuffersOnImplThread(
-    CompletionEvent* completion) {
-  if (impl().layer_tree_host_impl->renderer())
-    impl().layer_tree_host_impl->renderer()->DoNoOp();

[danakj, 2015/09/21 19:48:33]

https://code.google.com/p/chromium/codesearch#chromium/src/cc/output/renderer...
this DoNoOp can go too?

-  completion->Signal();
-}
-
 bool ThreadProxy::SupportsImplScrolling() const {
   return true;
 }
 
 void ThreadProxy::FinishAllRenderingOnImplThread(CompletionEvent* completion) {
   TRACE_EVENT0("cc", "ThreadProxy::FinishAllRenderingOnImplThread");
   DCHECK(IsImplThread());
   impl().layer_tree_host_impl->FinishAllRendering();
   completion->Signal();
 }
@@ skipping 600 matching lines @@
 
 void ThreadProxy::PostFrameTimingEvents(
     scoped_ptr<FrameTimingTracker::CompositeTimingSet> composite_events,
     scoped_ptr<FrameTimingTracker::MainFrameTimingSet> main_frame_events) {
   DCHECK(IsMainThread());
   layer_tree_host()->RecordFrameTimingEvents(composite_events.Pass(),
                                              main_frame_events.Pass());
 }
 
 }  // namespace cc