cc: Make scheduling be driven by vsync for android webview.

cc/trees/single_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/single_thread_proxy.h"
 
 #include "base/auto_reset.h"
 #include "base/debug/trace_event.h"
 #include "cc/debug/benchmark_instrumentation.h"
 #include "cc/output/context_provider.h"
@@ skipping 348 matching lines @@
 
 void SingleThreadProxy::NotifyReadyToDraw() {
 }
 
 void SingleThreadProxy::SetNeedsRedrawOnImplThread() {
   client_->ScheduleComposite();
   if (scheduler_on_impl_thread_)
     scheduler_on_impl_thread_->SetNeedsRedraw();
 }
 
+void SingleThreadProxy::OutputSurfaceDidRequestDraw() {
+  TRACE_EVENT0("cc", "SingleThreadProxy::OutputSurfaceDidRequestDraw");
+  if (scheduler_on_impl_thread_)
+    scheduler_on_impl_thread_->OutputSurfaceDidRequestDraw();
+}
+
 void SingleThreadProxy::SetNeedsAnimateOnImplThread() {
   client_->ScheduleComposite();
   if (scheduler_on_impl_thread_)
     scheduler_on_impl_thread_->SetNeedsAnimate();
 }
 
 void SingleThreadProxy::SetNeedsPrepareTilesOnImplThread() {
   TRACE_EVENT0("cc", "SingleThreadProxy::SetNeedsPrepareTilesOnImplThread");
   if (scheduler_on_impl_thread_)
     scheduler_on_impl_thread_->SetNeedsPrepareTiles();
@@ skipping 392 matching lines @@
   }
 }
 
 void SingleThreadProxy::ScheduledActionPrepareTiles() {
   TRACE_EVENT0("cc", "SingleThreadProxy::ScheduledActionPrepareTiles");
   DCHECK(layer_tree_host_impl_->settings().impl_side_painting);
   DebugScopedSetImplThread impl(this);
   layer_tree_host_impl_->PrepareTiles();
 }
 
+void SingleThreadProxy::ScheduledActionInvalidateOutputSurface() {
+  DCHECK(layer_tree_host_impl_->output_surface());
+  layer_tree_host_impl_->output_surface()->Invalidate();
+}
+
 void SingleThreadProxy::DidAnticipatedDrawTimeChange(base::TimeTicks time) {
 }
 
 base::TimeDelta SingleThreadProxy::DrawDurationEstimate() {
   return timing_history_.DrawDurationEstimate();
 }
 
 base::TimeDelta SingleThreadProxy::BeginMainFrameToCommitDurationEstimate() {
   return timing_history_.BeginMainFrameToCommitDurationEstimate();
 }
 
 base::TimeDelta SingleThreadProxy::CommitToActivateDurationEstimate() {
   return timing_history_.CommitToActivateDurationEstimate();
 }
 
 void SingleThreadProxy::DidBeginImplFrameDeadline() {
   layer_tree_host_impl_->ResetCurrentBeginFrameArgsForNextFrame();
 }
 
 void SingleThreadProxy::SendBeginFramesToChildren(const BeginFrameArgs& args) {
   layer_tree_host_->SendBeginFramesToChildren(args);
 }
 
 }  // namespace cc