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

chrome/browser/sidebar/sidebar_browsertest.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 "base/command_line.h"
 #include "base/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/path_service.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
 #include "chrome/browser/sidebar/sidebar_manager.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
 #include "chrome/browser/ui/views/frame/browser_view.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "net/test/test_server.h"
 
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
 
+using content::NavigationController;
+
 namespace {
 
 const char kSimplePage[] = "files/sidebar/simple_page.html";
 
 class SidebarTest : public ExtensionBrowserTest {
  public:
   SidebarTest() {
     CommandLine::ForCurrentProcess()->AppendSwitch(
         switches::kEnableExperimentalExtensionApis);
   }
@@ skipping 36 matching lines @@
     TabContents* tab =
         browser()->GetSelectedTabContentsWrapper()->tab_contents();
 
     SidebarManager* sidebar_manager = SidebarManager::GetInstance();
     SidebarContainer* sidebar_container =
         sidebar_manager->GetSidebarContainerFor(tab, content_id_);
     TabContents* client_contents = sidebar_container->sidebar_contents();
 
     ui_test_utils::WindowedNotificationObserver observer(
         content::NOTIFICATION_LOAD_STOP,
-        content::Source<content::NavigationController>(
+        content::Source<NavigationController>(
             &client_contents->GetController()));
     sidebar_manager->NavigateSidebar(tab, content_id_, url);
     observer.Wait();
   }
 
   void ShowSidebar(TabContents* tab) {
     SidebarManager* sidebar_manager = SidebarManager::GetInstance();
     sidebar_manager->ShowSidebar(tab, content_id_);
   }
 
@@ skipping 103 matching lines @@
   ASSERT_TRUE(test_server()->Start());
 
   ShowSidebarForCurrentTab();
 
   NavigateSidebarForCurrentTabTo(kSimplePage);
 
   HideSidebarForCurrentTab();
 }
 
 }  // namespace