Get rid of content::NavigationController in cc file and use "using" instead.

chrome/browser/content_settings/tab_specific_content_settings.cc

 // Copyright (c) 2011 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/browser/content_settings/tab_specific_content_settings.h"
 
 #include <list>
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
@@ skipping 16 matching lines @@
 #include "content/browser/renderer_host/render_view_host_delegate.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_details.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "webkit/fileapi/file_system_types.h"
 
 using content::BrowserThread;
+using content::NavigationController;
 using content::NavigationEntry;
 using content::WebContents;
 
 namespace {
 typedef std::list<TabSpecificContentSettings*> TabSpecificList;
 static base::LazyInstance<TabSpecificList> g_tab_specific =
     LAZY_INSTANCE_INITIALIZER;
 }
 
 bool TabSpecificContentSettings::LocalSharedObjectsContainer::empty() const {
@@ skipping 415 matching lines @@
   }
 }
 
 void TabSpecificContentSettings::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   DCHECK(type == chrome::NOTIFICATION_CONTENT_SETTINGS_CHANGED);
 
   content::Details<const ContentSettingsDetails> settings_details(details);
-  const content::NavigationController& controller =
-      web_contents()->GetController();
+  const NavigationController& controller = web_contents()->GetController();
   NavigationEntry* entry = controller.GetActiveEntry();
   GURL entry_url;
   if (entry)
     entry_url = entry->GetURL();
   if (settings_details.ptr()->update_all() ||
       // The active NavigationEntry is the URL in the URL field of a tab.
       // Currently this should be matched by the |primary_pattern|.
       settings_details.ptr()->primary_pattern().Matches(entry_url)) {
     Profile* profile =
         Profile::FromBrowserContext(web_contents()->GetBrowserContext());
@@ skipping 34 matching lines @@
   return new CookiesTreeModel(cookies_->Clone(),
                               databases_->Clone(),
                               local_storages_->Clone(),
                               session_storages_->Clone(),
                               appcaches_->Clone(),
                               indexed_dbs_->Clone(),
                               file_systems_->Clone(),
                               NULL,
                               true);
 }