Update a bunch of files to the new location of notification files.

chrome/browser/ui/cocoa/history_menu_bridge.h

Index: chrome/browser/ui/cocoa/history_menu_bridge.h
diff --git a/chrome/browser/ui/cocoa/history_menu_bridge.h b/chrome/browser/ui/cocoa/history_menu_bridge.h
index 2e90b1d29fa718de97a2b0fbc55d0eef0ec0de4c..b6de81916e1c2f32180862445a007a8be6550474 100644
--- a/chrome/browser/ui/cocoa/history_menu_bridge.h
+++ b/chrome/browser/ui/cocoa/history_menu_bridge.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -16,8 +16,8 @@
 #include "chrome/browser/sessions/session_id.h"
 #include "chrome/browser/sessions/tab_restore_service.h"
 #include "chrome/browser/sessions/tab_restore_service_observer.h"
-#include "chrome/common/notification_observer.h"
 #include "content/browser/cancelable_request.h"
+#include "content/common/notification_observer.h"
 
 class NavigationEntry;
 class NotificationRegistrar;