Do SetNeedsCommit() instead of Composite() in threaded mode.

content/renderer/gpu/render_widget_compositor.cc

 // Copyright (c) 2013 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 "content/renderer/gpu/render_widget_compositor.h"
 
 #include <limits>
 #include <string>
 
 #if defined(OS_ANDROID)
@@ skipping 337 matching lines @@
 }
 
 bool RenderWidgetCompositor::BeginMainFrameRequested() const {
   return layer_tree_host_->BeginMainFrameRequested();
 }
 
 void RenderWidgetCompositor::UpdateAnimations(base::TimeTicks time) {
   layer_tree_host_->UpdateClientAnimations(time);
 }
 
-void RenderWidgetCompositor::Composite(base::TimeTicks frame_begin_time) {
-  layer_tree_host_->Composite(frame_begin_time);
-}
-
 void RenderWidgetCompositor::SetNeedsDisplayOnAllLayers() {
   layer_tree_host_->SetNeedsDisplayOnAllLayers();
 }
 
 void RenderWidgetCompositor::SetRasterizeOnlyVisibleContent() {
   cc::LayerTreeDebugState current = layer_tree_host_->debug_state();
   current.rasterize_only_visible_content = true;
   layer_tree_host_->SetDebugState(current);
 }
 
@@ skipping 320 matching lines @@
   widget_->OnSwapBuffersAborted();
 }
 
 void RenderWidgetCompositor::RateLimitSharedMainThreadContext() {
   cc::ContextProvider* provider =
       RenderThreadImpl::current()->SharedMainThreadContextProvider().get();
   provider->ContextGL()->RateLimitOffscreenContextCHROMIUM();
 }
 
 }  // namespace content