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

content/browser/tab_contents/navigation_controller_impl_unittest.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/file_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
 #include "base/stl_util.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
@@ skipping 16 matching lines @@
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "content/test/test_browser_context.h"
 #include "content/test/test_notification_tracker.h"
 #include "net/base/net_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "webkit/glue/webkit_glue.h"
 
 using base::Time;
+using content::NavigationController;
 using content::NavigationEntry;
 using content::NavigationEntryImpl;
 using content::WebContents;
 
 // NavigationControllerTest ----------------------------------------------------
 
 class NavigationControllerTest : public RenderViewHostTestHarness {
  public:
   NavigationControllerTest() {}
 };
 
 void RegisterForAllNavNotifications(TestNotificationTracker* tracker,
                                     NavigationControllerImpl* controller) {
   tracker->ListenFor(content::NOTIFICATION_NAV_ENTRY_COMMITTED,
-                     content::Source<content::NavigationController>(
+                     content::Source<NavigationController>(
                          controller));
   tracker->ListenFor(content::NOTIFICATION_NAV_LIST_PRUNED,
-                     content::Source<content::NavigationController>(
+                     content::Source<NavigationController>(
                          controller));
   tracker->ListenFor(content::NOTIFICATION_NAV_ENTRY_CHANGED,
-                     content::Source<content::NavigationController>(
+                     content::Source<NavigationController>(
                          controller));
 }
 
 class TestWebContentsDelegate : public content::WebContentsDelegate {
  public:
   explicit TestWebContentsDelegate() :
       navigation_state_change_count_(0) {}
 
   int navigation_state_change_count() {
     return navigation_state_change_count_;
@@ skipping 1321 matching lines @@
   }
 }
 
 // NotificationObserver implementation used in verifying we've received the
 // content::NOTIFICATION_NAV_LIST_PRUNED method.
 class PrunedListener : public content::NotificationObserver {
  public:
   explicit PrunedListener(NavigationControllerImpl* controller)
       : notification_count_(0) {
     registrar_.Add(this, content::NOTIFICATION_NAV_LIST_PRUNED,
-                   content::Source<content::NavigationController>(controller));
+                   content::Source<NavigationController>(controller));
   }
 
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) {
     if (type == content::NOTIFICATION_NAV_LIST_PRUNED) {
       notification_count_++;
       details_ = *(content::Details<content::PrunedDetails>(details).ptr());
     }
   }
@@ skipping 1008 matching lines @@
   TabNavigation nav(0, url0, GURL(), string16(),
                     webkit_glue::CreateHistoryStateForURL(url0),
                     content::PAGE_TRANSITION_LINK);
   session_helper_.AssertNavigationEquals(nav,
                                          windows_[0]->tabs[0]->navigations[0]);
   nav.set_url(url2);
   session_helper_.AssertNavigationEquals(nav,
                                          windows_[0]->tabs[0]->navigations[1]);
 }
 */