Track NPObject ownership by the originating plugins' NPP identifier. [2/3] (Chrome)

webkit/plugins/npapi/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_NPAPI_WEBPLUGIN_IMPL_H_
 #define WEBKIT_PLUGINS_NPAPI_WEBPLUGIN_IMPL_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 57 matching lines @@
                           uint32 length);
 
   virtual WebPluginDelegate* delegate();
 
  private:
   // WebKit::WebPlugin methods:
   virtual bool initialize(
       WebKit::WebPluginContainer* container);
   virtual void destroy();
   virtual NPObject* scriptableObject();
+  virtual struct _NPP* pluginNPP();
   virtual bool getFormValue(WebKit::WebString& value);
   virtual void paint(
       WebKit::WebCanvas* canvas, const WebKit::WebRect& paint_rect);
   virtual void updateGeometry(
       const WebKit::WebRect& frame_rect, const WebKit::WebRect& clip_rect,
       const WebKit::WebVector<WebKit::WebRect>& cut_outs, bool is_visible);
   virtual void updateFocus(bool focused);
   virtual void updateVisibility(bool visible);
   virtual bool acceptsInputEvents();
   virtual bool handleInputEvent(
@@ skipping 197 matching lines @@
 #endif
   bool accepts_input_events_;
   base::WeakPtr<WebPluginPageDelegate> page_delegate_;
   WebKit::WebFrame* webframe_;
 
   WebPluginDelegate* delegate_;
 
   // This is just a weak reference.
   WebKit::WebPluginContainer* container_;
 
+  // Unique identifier for this plugin, used to track script objects.
+  struct _NPP* npp_;
+
   typedef std::map<WebPluginResourceClient*,
                    webkit_glue::MultipartResponseDelegate*>
       MultiPartResponseHandlerMap;
   // Tracks HTTP multipart response handlers instantiated for
   // a WebPluginResourceClient instance.
   MultiPartResponseHandlerMap multi_part_response_map_;
 
   // The plugin source URL.
   GURL plugin_url_;
 
@@ skipping 22 matching lines @@
 
   base::WeakPtrFactory<WebPluginImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebPluginImpl);
 };
 
 }  // namespace npapi
 }  // namespace webkit
 
 #endif  // WEBKIT_PLUGINS_NPAPI_WEBPLUGIN_IMPL_H_