Make DrawingBuffer and Canvas2DLayerBridge be cc::TextureLayerClients.

cc/blink/web_compositor_support_impl.cc

 // Copyright 2014 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/blink/web_compositor_support_impl.h"
 
 #include <memory>
 
 #include "cc/blink/web_content_layer_impl.h"
 #include "cc/blink/web_display_item_list_impl.h"
 #include "cc/blink/web_external_texture_layer_impl.h"
 #include "cc/blink/web_image_layer_impl.h"
 #include "cc/blink/web_layer_impl.h"
 #include "cc/blink/web_scrollbar_layer_impl.h"
 #include "cc/layers/layer.h"
 #include "cc/output/output_surface.h"
 #include "cc/output/software_output_device.h"
 
 using blink::WebContentLayer;
 using blink::WebContentLayerClient;
 using blink::WebDisplayItemList;
 using blink::WebExternalTextureLayer;
-using blink::WebExternalTextureLayerClient;
 using blink::WebImageLayer;
 using blink::WebLayer;
 using blink::WebScrollbar;
 using blink::WebScrollbarLayer;
 using blink::WebScrollbarThemeGeometry;
 using blink::WebScrollbarThemePainter;
 
 namespace cc_blink {
 
 WebCompositorSupportImpl::WebCompositorSupportImpl() {
 }
 
 WebCompositorSupportImpl::~WebCompositorSupportImpl() {
 }
 
 WebLayer* WebCompositorSupportImpl::createLayer() {
   return new WebLayerImpl();
 }
 
 WebLayer* WebCompositorSupportImpl::createLayerFromCCLayer(cc::Layer* layer) {
   return new WebLayerImpl(layer);
 }
 
 WebContentLayer* WebCompositorSupportImpl::createContentLayer(
     WebContentLayerClient* client) {
   return new WebContentLayerImpl(client);
 }
 
 WebExternalTextureLayer* WebCompositorSupportImpl::createExternalTextureLayer(
-    WebExternalTextureLayerClient* client) {
+    cc::TextureLayerClient* client) {
   return new WebExternalTextureLayerImpl(client);
 }
 
 blink::WebImageLayer* WebCompositorSupportImpl::createImageLayer() {
   return new WebImageLayerImpl();
 }
 
 WebScrollbarLayer* WebCompositorSupportImpl::createScrollbarLayer(
     WebScrollbar* scrollbar,
     WebScrollbarThemePainter painter,
     WebScrollbarThemeGeometry* geometry) {
   return new WebScrollbarLayerImpl(scrollbar, painter, geometry);
 }
 
 WebScrollbarLayer* WebCompositorSupportImpl::createSolidColorScrollbarLayer(
     WebScrollbar::Orientation orientation,
     int thumb_thickness,
     int track_start,
     bool is_left_side_vertical_scrollbar) {
   return new WebScrollbarLayerImpl(orientation,
                                    thumb_thickness,
                                    track_start,
                                    is_left_side_vertical_scrollbar);
 }
 
 }  // namespace cc_blink