cc: Throttle swaps in Scheduler instead of OutputSurface

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 417 matching lines @@
   TRACE_EVENT0("cc", "ThreadProxy::CheckOutputSurfaceStatusOnImplThread");
   DCHECK(IsImplThread());
   if (!impl().layer_tree_host_impl->IsContextLost())
     return;
   if (ContextProvider* offscreen_contexts =
           impl().layer_tree_host_impl->offscreen_context_provider())
     offscreen_contexts->VerifyContexts();
   impl().scheduler->DidLoseOutputSurface();
 }
 
+void ThreadProxy::SetMaxSwapsPending(int max) {
+  impl().scheduler->SetMaxSwapsPending(max);
+}
+
+void ThreadProxy::DidSwapBuffersOnImplThread() {
+  impl().scheduler->DidSwapBuffers();
+}
+
 void ThreadProxy::OnSwapBuffersCompleteOnImplThread() {
   TRACE_EVENT0("cc", "ThreadProxy::OnSwapBuffersCompleteOnImplThread");
   DCHECK(IsImplThread());
+  impl().scheduler->OnSwapBuffersComplete();
   Proxy::MainThreadTaskRunner()->PostTask(
       FROM_HERE,
       base::Bind(&ThreadProxy::DidCompleteSwapBuffers, main_thread_weak_ptr_));
 }
 
 void ThreadProxy::SetNeedsBeginImplFrame(bool enable) {
   TRACE_EVENT1("cc", "ThreadProxy::SetNeedsBeginImplFrame", "enable", enable);
   DCHECK(IsImplThread());
   impl().layer_tree_host_impl->SetNeedsBeginImplFrame(enable);
   UpdateBackgroundAnimateTicking();
@@ skipping 1281 matching lines @@
 
   impl().timing_history.DidActivatePendingTree();
 }
 
 void ThreadProxy::DidManageTiles() {
   DCHECK(IsImplThread());
   impl().scheduler->DidManageTiles();
 }
 
 }  // namespace cc