Move the plugin placeholder from CppBoundClass to gin::Wrappable

chrome/renderer/plugins/chrome_plugin_placeholder.h

 // Copyright 2013 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 CHROME_RENDERER_PLUGINS_CHROME_PLUGIN_PLACEHOLDER_H_
 #define CHROME_RENDERER_PLUGINS_CHROME_PLUGIN_PLACEHOLDER_H_
 
 #include "components/plugins/renderer/plugin_placeholder.h"
+#include "gin/wrappable.h"
 
 struct ChromeViewHostMsg_GetPluginInfo_Status;
 
 class ChromePluginPlaceholder : public plugins::PluginPlaceholder,
                                 public content::RenderProcessObserver,
-                                public content::ContextMenuClient {
+                                public content::ContextMenuClient,
+                                public gin::Wrappable<ChromePluginPlaceholder> {
  public:
+  static gin::WrapperInfo kWrapperInfo;
+  static v8::Local<v8::ObjectTemplate> GetObjectTemplate(v8::Isolate* isolate);
+
   static const char kPluginPlaceholderDataURL[];
 
   static ChromePluginPlaceholder* CreateBlockedPlugin(
       content::RenderFrame* render_frame,
       blink::WebFrame* frame,
       const blink::WebPluginParams& params,
       const content::WebPluginInfo& info,
       const std::string& identifier,
       const base::string16& name,
       int resource_id,
@@ skipping 33 matching lines @@
   virtual void ShowContextMenu(const blink::WebMouseEvent&) OVERRIDE;
 
   // content::RenderProcessObserver methods:
   virtual void PluginListChanged() OVERRIDE;
 
   // content::ContextMenuClient methods:
   virtual void OnMenuAction(int request_id, unsigned action) OVERRIDE;
   virtual void OnMenuClosed(int request_id) OVERRIDE;
 
   // Javascript callback opens chrome://plugins in a new tab.
-  // Arguments are required by the caller, but not used.
-  void OpenAboutPluginsCallback(const webkit_glue::CppArgumentList& args,
-                                webkit_glue::CppVariant* result);
+  void OpenAboutPluginsCallback();
 
   void OnLoadBlockedPlugins(const std::string& identifier);
   void OnSetIsPrerendering(bool is_prerendering);
 #if defined(ENABLE_PLUGIN_INSTALLATION)
   void OnDidNotFindMissingPlugin();
   void OnFoundMissingPlugin(const base::string16& plugin_name);
   void OnStartedDownloadingPlugin();
   void OnFinishedDownloadingPlugin();
   void OnErrorDownloadingPlugin(const std::string& error);
   void OnCancelledDownloadingPlugin();
@@ skipping 12 matching lines @@
 #endif
 
   bool has_host_;
   int context_menu_request_id_;  // Nonzero when request pending.
   base::string16 plugin_name_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromePluginPlaceholder);
 };
 
 #endif  // CHROME_RENDERER_PLUGINS_CHROME_PLUGIN_PLACEHOLDER_H_