Clean up ResourceHandler API.

content/browser/loader/resource_handler.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 "content/browser/loader/resource_handler.h"
 
+#include "content/browser/loader/resource_request_info_impl.h"
+
 namespace content {
 
+ResourceHandler::ResourceHandler(net::URLRequest* request)
+    : controller_(NULL),
+      request_(request) {
+}
+
 void ResourceHandler::SetController(ResourceController* controller) {
   controller_ = controller;
 }
 
+ResourceRequestInfoImpl* ResourceHandler::GetRequestInfo() const {
+  return ResourceRequestInfoImpl::ForRequest(request_);
+}
+
+int ResourceHandler::GetRequestID() const {
+  return GetRequestInfo()->GetRequestID();
+}
+
+ResourceMessageFilter* ResourceHandler::GetFilter() const {
+  return GetRequestInfo()->filter();
+}
+
 }  // namespace content