cc: Setup API to release OutputSurface from LTHClient.

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>
 
 #include "base/command_line.h"
@@ skipping 197 matching lines @@
   return compositor;
 }
 
 RenderWidgetCompositor::RenderWidgetCompositor(
     RenderWidget* widget,
     CompositorDependencies* compositor_deps)
     : num_failed_recreate_attempts_(0),
       widget_(widget),
       compositor_deps_(compositor_deps),
       layout_and_paint_async_callback_(nullptr),
-      weak_factory_(this) {
-}
+      weak_factory_(this) {}

[no sievers, 2015/09/10 17:27:45]

nit: change not needed, remove this file from patch set

 
 void RenderWidgetCompositor::Initialize() {
   base::CommandLine* cmd = base::CommandLine::ForCurrentProcess();
 
   cc::LayerTreeSettings settings;
 
   // For web contents, layer transforms should scale up the contents of layers
   // to keep content always crisp when possible.
   settings.layer_transforms_should_scale_layer_contents = true;
 
@@ skipping 811 matching lines @@
     return;
   provider->ContextGL()->RateLimitOffscreenContextCHROMIUM();
 }
 
 void RenderWidgetCompositor::SetSurfaceIdNamespace(
     uint32_t surface_id_namespace) {
   layer_tree_host_->set_surface_id_namespace(surface_id_namespace);
 }
 
 }  // namespace content