Simplfy Pepepr2 bolierplate code.

webkit/glue/plugins/pepper_url_response_info.cc

 // Copyright (c) 2010 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/glue/plugins/pepper_url_response_info.h"
 
 #include "base/logging.h"
 #include "third_party/ppapi/c/pp_var.h"
-#include "webkit/glue/plugins/pepper_resource_tracker.h"
 
 namespace pepper {
 
 namespace {
 
 bool IsURLResponseInfo(PP_Resource resource) {
-  return !!ResourceTracker::Get()->GetAsURLResponseInfo(resource).get();
+  return !!Resource::GetAs<URLResponseInfo>(resource).get();
 }
 
 PP_Var GetProperty(PP_Resource response_id,
                    PP_URLResponseProperty property) {
   scoped_refptr<URLResponseInfo> response(
-      ResourceTracker::Get()->GetAsURLResponseInfo(response_id));
+      Resource::GetAs<URLResponseInfo>(response_id));
   if (!response.get())
     return PP_MakeVoid();
 
   return response->GetProperty(property);
 }
 
 PP_Resource GetBody(PP_Resource response_id) {
   NOTIMPLEMENTED();  // TODO(darin): Implement me!
   return 0;
 }
@@ skipping 17 matching lines @@
 const PPB_URLResponseInfo* URLResponseInfo::GetInterface() {
   return &ppb_urlresponseinfo;
 }
 
 PP_Var URLResponseInfo::GetProperty(PP_URLResponseProperty property) {
   NOTIMPLEMENTED();  // TODO(darin): Implement me!
   return PP_MakeVoid();
 }
 
 }  // namespace pepper