Move about://-related constants from //content to //url

content/browser/webui/web_ui_controller_factory_registry.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/browser/webui/web_ui_controller_factory_registry.h"
 
 #include "base/lazy_instance.h"
 #include "content/browser/frame_host/debug_urls.h"
 #include "content/public/common/url_constants.h"
 #include "url/gurl.h"
@@ skipping 65 matching lines @@
   }
   return false;
 }
 
 bool WebUIControllerFactoryRegistry::IsURLAcceptableForWebUI(
     BrowserContext* browser_context,
     const GURL& url) const {
   return UseWebUIForURL(browser_context, url) ||
       // It's possible to load about:blank in a Web UI renderer.
       // See http://crbug.com/42547
-      url.spec() == kAboutBlankURL ||
+      url.spec() == url::kAboutBlankURL ||
       // javascript: and debug URLs like chrome://kill are allowed.
       IsRendererDebugURL(url);
 }
 
 WebUIControllerFactoryRegistry::WebUIControllerFactoryRegistry() {
 }
 
 WebUIControllerFactoryRegistry::~WebUIControllerFactoryRegistry() {
 }
 
 }  // namespace content