Allow WebExternalTextureLayerClient to work with mailboxes.

webkit/compositor_bindings/web_compositor_support_impl.cc

 // Copyright (c) 2012 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 "webkit/compositor_bindings/web_compositor_support_impl.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop_proxy.h"
 #include "cc/animation/transform_operations.h"
 #include "cc/base/thread_impl.h"
@@ skipping 39 matching lines @@
   return new WebLayerImpl();
 }
 
 WebContentLayer* WebCompositorSupportImpl::createContentLayer(
     WebContentLayerClient* client) {
   return new WebContentLayerImpl(client);
 }
 
 WebExternalTextureLayer* WebCompositorSupportImpl::createExternalTextureLayer(
     WebExternalTextureLayerClient* client) {
-  return new WebExternalTextureLayerImpl(client);
+  return new WebExternalTextureLayerImpl(client, false);
+}
+
+WebExternalTextureLayer*
+WebCompositorSupportImpl::createExternalTextureLayerForMailbox(
+    WebExternalTextureLayerClient* client) {
+  return new WebExternalTextureLayerImpl(client, true);
 }
 
 WebKit::WebImageLayer* WebCompositorSupportImpl::createImageLayer() {
   return new WebImageLayerImpl();
 }
 
 WebSolidColorLayer* WebCompositorSupportImpl::createSolidColorLayer() {
   return new WebSolidColorLayerImpl();
 }
 
@@ skipping 18 matching lines @@
 WebTransformAnimationCurve*
 WebCompositorSupportImpl::createTransformAnimationCurve() {
   return new WebTransformAnimationCurveImpl();
 }
 
 WebTransformOperations* WebCompositorSupportImpl::createTransformOperations() {
   return new WebTransformOperationsImpl();
 }
 
 }  // namespace webkit