cc: Throttle swaps in Scheduler instead of OutputSurface

cc/trees/thread_proxy.cc

Index: cc/trees/thread_proxy.cc
diff --git a/cc/trees/thread_proxy.cc b/cc/trees/thread_proxy.cc
index bf55546f6e31c5b5a9aba4b647e98a150ab3e78b..f29acd76e592493b64c91a5119afb43dfbdf43d9 100644
--- a/cc/trees/thread_proxy.cc
+++ b/cc/trees/thread_proxy.cc
@@ -435,9 +435,18 @@ void ThreadProxy::CheckOutputSurfaceStatusOnImplThread() {
   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_));