Rename ServiceWorkerContextObserver to ServiceWorkerContextCoreObserver.

content/browser/push_messaging/push_messaging_context.h

 // Copyright 2016 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 CONTENT_BROWSER_PUSH_MESSAGING_PUSH_MESSAGING_CONTEXT_H_
 #define CONTENT_BROWSER_PUSH_MESSAGING_PUSH_MESSAGING_CONTEXT_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "content/browser/service_worker/service_worker_context_observer.h"
+#include "content/browser/service_worker/service_worker_context_core_observer.h"
 
 class GURL;
 
 namespace content {
 
 class BrowserContext;
 class ServiceWorkerContextWrapper;
 
 // Observes the service worker context of the storage partition owning this
 // instance and informs the push service of relevant service worker events.
-class PushMessagingContext : public ServiceWorkerContextObserver,
+class PushMessagingContext : public ServiceWorkerContextCoreObserver,
                              public base::RefCounted<PushMessagingContext> {
  public:
   PushMessagingContext(
       BrowserContext* browser_context,
       const scoped_refptr<ServiceWorkerContextWrapper>& service_worker_context);
 
-  // ServiceWorkerContextObserver methods
+  // ServiceWorkerContextCoreObserver methods
   void OnRegistrationDeleted(int64_t registration_id,
                              const GURL& pattern) override;
 
  private:
   friend class base::RefCounted<PushMessagingContext>;
   ~PushMessagingContext() override;
   BrowserContext* browser_context_;
 
   scoped_refptr<ServiceWorkerContextWrapper> service_worker_context_;
 
   DISALLOW_COPY_AND_ASSIGN(PushMessagingContext);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_PUSH_MESSAGING_PUSH_MESSAGING_CONTEXT_H_