Make Web Push use InstanceID tokens instead of GCM registrations

content/public/browser/push_messaging_service.cc

 // Copyright 2015 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 "content/public/browser/push_messaging_service.h"
 
 #include "base/callback.h"
 #include "content/browser/push_messaging/push_messaging_message_filter.h"
 #include "content/browser/service_worker/service_worker_context_wrapper.h"
 #include "content/public/browser/browser_context.h"
@@ skipping 109 matching lines @@
   BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
                           base::Bind(&SetNotificationsShownOnIO,
                                      wrapper,
                                      service_worker_registration_id,
                                      origin,
                                      notifications_shown,
                                      callback));
 }
 
 // static
-void PushMessagingService::GetSenderId(BrowserContext* browser_context,
-                                       const GURL& origin,
-                                       int64_t service_worker_registration_id,
-                                       const StringCallback& callback) {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  BrowserThread::PostTask(
-      BrowserThread::IO,
-      FROM_HERE,
-      base::Bind(&GetUserDataOnIO,
-                 GetServiceWorkerContext(browser_context, origin),
-                 service_worker_registration_id,
-                 kPushSenderIdServiceWorkerKey,
-                 callback));
-}
-
-// static
 void PushMessagingService::ClearPushSubscriptionID(
     BrowserContext* browser_context,
     const GURL& origin,
     int64_t service_worker_registration_id,
     const base::Closure& callback) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   BrowserThread::PostTask(
       BrowserThread::IO,
       FROM_HERE,
       base::Bind(&ClearPushSubscriptionIDOnIO,
                  GetServiceWorkerContext(browser_context, origin),
                  service_worker_registration_id,
                  callback));
 }
 
 }  // namespace content