Add scale factor and 2x resources from webkit and plumb through to ContentClient.

content/common/webkitplatformsupport_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 "base/command_line.h"
 #include "content/common/child_thread.h"
 #include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
 #include "content/common/socket_stream_dispatcher.h"
 #include "content/common/webkitplatformsupport_impl.h"
 #include "content/public/common/content_client.h"
@@ skipping 10 matching lines @@
 
 string16 WebKitPlatformSupportImpl::GetLocalizedString(int message_id) {
   return content::GetContentClient()->GetLocalizedString(message_id);
 }
 
 base::StringPiece WebKitPlatformSupportImpl::GetDataResource(
     int resource_id) {
   return content::GetContentClient()->GetDataResource(resource_id);
 }
 
+base::StringPiece WebKitPlatformSupportImpl::GetImageResource(
+    int resource_id,
+    float scale_factor) {
+  return content::GetContentClient()->GetImageResource(resource_id,
+                                                       scale_factor);
+}
+
 void WebKitPlatformSupportImpl::GetPlugins(
     bool refresh, std::vector<webkit::WebPluginInfo>* plugins) {
   // This should not be called except in the renderer.
   // RendererWebKitPlatformSupportImpl overrides this.
   NOTREACHED();
 }
 
 webkit_glue::ResourceLoaderBridge*
 WebKitPlatformSupportImpl::CreateResourceLoader(
     const webkit_glue::ResourceLoaderBridge::RequestInfo& request_info) {
@@ skipping 34 matching lines @@
     return context.release();
   }
 }
 
 GpuChannelHostFactory* WebKitPlatformSupportImpl::GetGpuChannelHostFactory() {
   NOTREACHED();
   return NULL;
 }
 
 }  // namespace content