Replace more ObserverList with base::ObserverList.

content/public/test/mock_render_process_host.h

 // Copyright (c) 2012 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_PUBLIC_TEST_MOCK_RENDER_PROCESS_HOST_H_
 #define CONTENT_PUBLIC_TEST_MOCK_RENDER_PROCESS_HOST_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_vector.h"
 #include "base/observer_list.h"
@@ skipping 109 matching lines @@
       const GetAudioOutputControllersCallback& callback) const override {}
 
  private:
   // Stores IPC messages that would have been sent to the renderer.
   IPC::TestSink sink_;
   int bad_msg_count_;
   const MockRenderProcessHostFactory* factory_;
   int id_;
   bool has_connection_;
   BrowserContext* browser_context_;
-  ObserverList<RenderProcessHostObserver> observers_;
+  base::ObserverList<RenderProcessHostObserver> observers_;
 
   IDMap<RenderWidgetHost> render_widget_hosts_;
   int prev_routing_id_;
   IDMap<IPC::Listener> listeners_;
   bool fast_shutdown_started_;
   bool deletion_callback_called_;
   bool is_isolated_guest_;
   scoped_ptr<base::ProcessHandle> process_handle;
 
   DISALLOW_COPY_AND_ASSIGN(MockRenderProcessHost);
@@ skipping 18 matching lines @@
   // for deleting all MockRenderProcessHosts that have not deleted by a test in
   // the destructor and prevent them from being leaked.
   mutable ScopedVector<MockRenderProcessHost> processes_;
 
   DISALLOW_COPY_AND_ASSIGN(MockRenderProcessHostFactory);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_TEST_MOCK_RENDER_PROCESS_HOST_H_