Split ExtensionSystem interface from ExtensionSystemImpl implementation, part 1.

chrome/browser/media/protected_media_identifier_permission_context.cc

 // Copyright 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.
 
 #include "chrome/browser/media/protected_media_identifier_permission_context.h"
 
 #include <functional>
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
 #include "chrome/browser/content_settings/permission_request_id.h"
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
 #include "chrome/browser/extensions/extension_service.h"
-#include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/extensions/suggest_permission_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/tab_contents/tab_util.h"
 #include "chrome/common/pref_names.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
+#include "extensions/browser/extension_system.h"
 #include "extensions/browser/view_type_utils.h"
 #include "extensions/common/extension.h"
 
 using extensions::APIPermission;
 
 ProtectedMediaIdentifierPermissionContext::
     ProtectedMediaIdentifierPermissionContext(Profile* profile)
     : profile_(profile), shutting_down_(false) {}
 
 ProtectedMediaIdentifierPermissionContext::
@@ skipping 160 matching lines @@
                         CancelPendingInfobarRequests,
                    this,
                    group_id));
     return;
   }
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
   if (shutting_down_)
     return;
   QueueController()->CancelInfoBarRequests(group_id);
 }