Push API: use (un)subscription instead of (un)registration

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 49 matching lines @@
     int64 service_worker_registration_id, const GURL& origin,
     const std::string& data,
     const PushMessagingService::ResultCallback& callback) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   service_worker_context_wrapper->StoreRegistrationUserData(
       service_worker_registration_id, origin,
       kNotificationsShownServiceWorkerKey, data,
       base::Bind(&CallResultCallbackFromIO, callback));
 }
 
-void ClearPushRegistrationIDOnIO(
+void ClearPushSubscriptionIDOnIO(
     scoped_refptr<ServiceWorkerContextWrapper> service_worker_context,
     int64 service_worker_registration_id,
     const base::Closure& callback) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   service_worker_context->ClearRegistrationUserData(
       service_worker_registration_id,
       kPushRegistrationIdServiceWorkerKey,
       base::Bind(&CallClosureFromIO, callback));
 }
@@ skipping 54 matching lines @@
       BrowserThread::IO,
       FROM_HERE,
       base::Bind(&GetUserDataOnIO,
                  GetServiceWorkerContext(browser_context, origin),
                  service_worker_registration_id,
                  kPushSenderIdServiceWorkerKey,
                  callback));
 }
 
 // static
-void PushMessagingService::ClearPushRegistrationID(
+void PushMessagingService::ClearPushSubscriptionID(
     BrowserContext* browser_context,
     const GURL& origin,
     int64 service_worker_registration_id,
     const base::Closure& callback) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   BrowserThread::PostTask(
       BrowserThread::IO,
       FROM_HERE,
-      base::Bind(&ClearPushRegistrationIDOnIO,
+      base::Bind(&ClearPushSubscriptionIDOnIO,
                  GetServiceWorkerContext(browser_context, origin),
                  service_worker_registration_id,
                  callback));
 }
 
 }  // namespace content