Replace more ObserverList with base::ObserverList.

content/browser/service_worker/embedded_worker_instance.h

 // Copyright 2013 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_SERVICE_WORKER_EMBEDDED_WORKER_INSTANCE_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_EMBEDDED_WORKER_INSTANCE_H_
 
 #include <map>
 #include <vector>
 
@@ skipping 125 matching lines @@
   void set_devtools_attached(bool attached) { devtools_attached_ = attached; }
   bool devtools_attached() const { return devtools_attached_; }
 
   // Called when the script load request accessed the network.
   void OnNetworkAccessedForScriptLoad();
 
   static std::string StatusToString(Status status);
   static std::string StartingPhaseToString(StartingPhase phase);
 
  private:
-  typedef ObserverList<Listener> ListenerList;
+  typedef base::ObserverList<Listener> ListenerList;
   class DevToolsProxy;
   friend class EmbeddedWorkerRegistry;
   FRIEND_TEST_ALL_PREFIXES(EmbeddedWorkerInstanceTest, StartAndStop);
 
   // Constructor is called via EmbeddedWorkerRegistry::CreateWorker().
   // This instance holds a ref of |registry|.
   EmbeddedWorkerInstance(base::WeakPtr<ServiceWorkerContextCore> context,
                          int embedded_worker_id);
 
   // Called back from ServiceWorkerProcessManager after Start() passes control
@@ skipping 91 matching lines @@
   base::TimeTicks start_timing_;
 
   base::WeakPtrFactory<EmbeddedWorkerInstance> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(EmbeddedWorkerInstance);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_EMBEDDED_WORKER_INSTANCE_H_