Remove chrome/ code to handle App Notifications

chrome/browser/extensions/api/identity/identity_api.h

 // Copyright (c) 2012 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_EXTENSIONS_API_IDENTITY_IDENTITY_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_IDENTITY_IDENTITY_API_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/extensions/api/identity/web_auth_flow.h"
 #include "chrome/browser/extensions/api/profile_keyed_api_factory.h"
-#include "chrome/browser/extensions/app_notify_channel_setup.h"
 #include "chrome/browser/extensions/extension_function.h"
 #include "chrome/browser/extensions/extension_install_prompt.h"
 #include "chrome/browser/ui/webui/signin/login_ui_service.h"
 #include "google_apis/gaia/oauth2_mint_token_flow.h"
 
 class GetAuthTokenFunctionTest;
 class MockGetAuthTokenFunction;
 class GoogleServiceAuthError;
 class Profile;
 
@@ skipping 103 matching lines @@
   // ProfileKeyedAPI implementation.
   static const char* service_name() {
     return "IdentityAPI";
   }
   static const bool kServiceIsNULLWhileTesting = true;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_IDENTITY_IDENTITY_API_H_