Browser Plugin: Implement BrowserPluginObserver.

content/renderer/browser_plugin/mock_browser_plugin.cc

 // 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.
 
 #include "content/renderer/browser_plugin/mock_browser_plugin.h"
 #include "content/renderer/render_process_impl.h"
 
 namespace content {
 
 MockBrowserPlugin::MockBrowserPlugin(
     int id,
     RenderViewImpl* render_view,
     WebKit::WebFrame* frame,
     const WebKit::WebPluginParams& params)
-    : BrowserPlugin(id, render_view, frame, params) {
+    : BrowserPluginImpl(id, render_view, frame, params) {
 }
 
 MockBrowserPlugin::~MockBrowserPlugin() {}
 
 }  // namespace content