Push API: Fix unsubscribing from GCM on Android

chrome/browser/services/gcm/push_messaging_service_impl.h

 // Copyright 2014 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_SERVICES_GCM_PUSH_MESSAGING_SERVICE_IMPL_H_
 #define CHROME_BROWSER_SERVICES_GCM_PUSH_MESSAGING_SERVICE_IMPL_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/weak_ptr.h"
 #include "components/gcm_driver/gcm_app_handler.h"
@@ skipping 49 matching lines @@
       bool user_visible_only,
       const content::PushMessagingService::RegisterCallback& callback) override;
   void RegisterFromWorker(
       const GURL& requesting_origin,
       int64 service_worker_registration_id,
       const std::string& sender_id,
       const content::PushMessagingService::RegisterCallback& callback) override;
   void Unregister(
       const GURL& requesting_origin,
       int64 service_worker_registration_id,
+      const std::string& sender_id,
       const content::PushMessagingService::UnregisterCallback&) override;
   blink::WebPushPermissionStatus GetPermissionStatus(
       const GURL& requesting_origin,
       const GURL& embedding_origin) override;
 
   void SetProfileForTesting(Profile* profile);
 
  private:
   // A registration is pending until it has succeeded or failed.
   void IncreasePushRegistrationCount(int add, bool is_pending);
@@ skipping 49 matching lines @@
   int pending_push_registration_count_;
 
   base::WeakPtrFactory<PushMessagingServiceImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PushMessagingServiceImpl);
 };
 
 }  // namespace gcm
 
 #endif  // CHROME_BROWSER_SERVICES_GCM_PUSH_MESSAGING_SERVICE_IMPL_H_