Split ExtensionSystem interface from ExtensionSystemImpl implementation, part 1.

chrome/browser/chromeos/accessibility/accessibility_manager.h

 // Copyright (c) 2013 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_MANAGER_H_
 
 #include <set>
 
 #include "ash/accessibility_delegate.h"
 #include "ash/session_state_observer.h"
 #include "base/memory/weak_ptr.h"
 #include "base/prefs/pref_change_registrar.h"
 #include "base/time/time.h"
 #include "chrome/browser/chromeos/accessibility/accessibility_util.h"
 #include "chrome/browser/extensions/api/braille_display_private/braille_controller.h"
-#include "chrome/browser/extensions/extension_system.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "extensions/browser/event_router.h"
+#include "extensions/browser/extension_system.h"
 
 class Profile;
 
 namespace chromeos {
 
 struct AccessibilityStatusEventDetails {
   AccessibilityStatusEventDetails(
       bool enabled,
       ash::AccessibilityNotificationVisibility notify);
 
@@ skipping 183 matching lines @@
   bool should_speak_chrome_vox_announcements_on_user_screen_;
 
   bool system_sounds_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(AccessibilityManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_MANAGER_H_