<webview>: Allocate the view instance ID from the WebView shim

content/renderer/browser_plugin/mock_browser_plugin_manager.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_RENDERER_BROWSER_PLUGIN_MOCK_BROWSER_PLUGIN_MANAGER_H_
 #define CONTENT_RENDERER_BROWSER_PLUGIN_MOCK_BROWSER_PLUGIN_MANAGER_H_
 
 #include "content/renderer/browser_plugin/browser_plugin_manager.h"
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 22 matching lines @@
  protected:
   virtual ~MockBrowserPluginManager();
   void AllocateInstanceIDACK(BrowserPlugin* browser_plugin,
                              int guest_instance_id);
 
   IPC::TestSink sink_;
 
   // The last known good deserializer for sync messages.
   scoped_ptr<IPC::MessageReplyDeserializer> reply_deserializer_;
 
-  int browser_plugin_instance_id_counter_;
   int guest_instance_id_counter_;
 
   DISALLOW_COPY_AND_ASSIGN(MockBrowserPluginManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_BROWSER_PLUGIN_MOCK_BROWSER_PLUGIN_MANAGER_H_