Simplify WebUI data sources. Currently WebUI data sources implement a URLDataSourceDelegate interfa…

content/public/browser/url_data_source.cc

 // Copyright (c) 2013 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/public/browser/url_data_source_delegate.h"
+#include "content/public/browser/url_data_source.h"
 
 #include "content/public/browser/browser_thread.h"
 
 namespace content {
 
-URLDataSourceDelegate::URLDataSourceDelegate()
-    : url_data_source_(NULL) {
-}
-
-URLDataSourceDelegate::~URLDataSourceDelegate() {
-}
-
-MessageLoop* URLDataSourceDelegate::MessageLoopForRequestPath(
+MessageLoop* URLDataSource::MessageLoopForRequestPath(
     const std::string& path) const {
   return BrowserThread::UnsafeGetMessageLoopForThread(BrowserThread::UI);
 }
 
-bool URLDataSourceDelegate::ShouldReplaceExistingSource() const {
+bool URLDataSource::ShouldReplaceExistingSource() const {
   return true;
 }
 
-bool URLDataSourceDelegate::AllowCaching() const {
+bool URLDataSource::AllowCaching() const {
   return true;
 }
 
 }  // namespace content