Move Extension into extensions namespace

chrome/renderer/extensions/chrome_v8_extension.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 "chrome/renderer/extensions/chrome_v8_extension.h"
 
 #include "base/logging.h"
 #include "base/lazy_instance.h"
 #include "base/stringprintf.h"
 #include "base/string_util.h"
@@ skipping 44 matching lines @@
 
 ChromeV8Extension::~ChromeV8Extension() {
   g_instances.Get().erase(this);
 }
 
 // static
 const ChromeV8Extension::InstanceSet& ChromeV8Extension::GetAll() {
   return g_instances.Get();
 }
 
-const Extension* ChromeV8Extension::GetExtensionForCurrentRenderView() const {
+const extensions::Extension*
+    ChromeV8Extension::GetExtensionForCurrentRenderView() const {
   content::RenderView* renderview = GetCurrentRenderView();
   if (!renderview)
     return NULL;  // this can happen as a tab is closing.
 
   WebDocument document = renderview->GetWebView()->mainFrame()->document();
   GURL url = document.url();
   const ExtensionSet* extensions = extension_dispatcher_->extensions();
   if (!extensions->ExtensionBindingsAllowed(
       ExtensionURLInfo(document.securityOrigin(), url)))
     return NULL;
 
   return extensions->GetExtensionOrAppByURL(
       ExtensionURLInfo(document.securityOrigin(), url));
 }