Re-land http://codereview.chromium.org/9403039/, r124106

webkit/plugins/ppapi/ppapi_webplugin_impl.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 WEBKIT_PLUGINS_PPAPI_PPAPI_WEBPLUGIN_IMPL_H_
 #define WEBKIT_PLUGINS_PPAPI_PPAPI_WEBPLUGIN_IMPL_H_
 
 #include <string>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop_helpers.h"
+#include "ppapi/c/pp_var.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPlugin.h"
 #include "ui/gfx/rect.h"
 #include "webkit/plugins/webkit_plugins_export.h"
 
 namespace WebKit {
 struct WebPluginParams;
 }
 
 namespace webkit {
 namespace ppapi {
@@ skipping 62 matching lines @@
 
   struct InitData;
 
   scoped_ptr<InitData> init_data_;  // Cleared upon successful initialization.
   // True if the instance represents the entire document in a frame instead of
   // being an embedded resource.
   bool full_frame_;
   scoped_refptr<PluginInstance> instance_;
   scoped_refptr<PPB_URLLoader_Impl> document_loader_;
   gfx::Rect plugin_rect_;
+  PP_Var instance_object_;
 
   DISALLOW_COPY_AND_ASSIGN(WebPluginImpl);
 };
 
 }  // namespace ppapi
 }  // namespace webkit
 
 #endif  // WEBKIT_PLUGINS_PPAPI_PPAPI_WEBPLUGIN_IMPL_H_