linux: cleanup browser-side GtkSockets when plugins are destroyed

webkit/glue/webplugin_impl.h

 // Copyright (c) 2006-2008 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_GLUE_WEBPLUGIN_IMPL_H_
 #define WEBKIT_GLUE_WEBPLUGIN_IMPL_H_
 
 #include <string>
 #include <map>
 #include <vector>
@@ skipping 131 matching lines @@
  private:
   friend class WebPluginContainer;
 
   WebPluginImpl(WebCore::HTMLPlugInElement* element, WebFrameImpl* frame,
                 WebPluginDelegate* delegate, const GURL& plugin_url,
                 bool load_manually, const std::string& mime_type,
                 int arg_count, char** arg_names, char** arg_values);
 
   // WebPlugin implementation:
   void SetWindow(gfx::PluginWindowHandle window);
-  void WillDestroyWindow(gfx::PluginWindowHandle window) { }
+  void WillDestroyWindow(gfx::PluginWindowHandle window);
 #if defined(OS_WIN)
   void SetWindowlessPumpEvent(HANDLE pump_messages_event) { }
 #endif
 
   // Given a (maybe partial) url, completes using the base url.
   bool CompleteURL(const std::string& url_in, std::string* url_out);
 
   // Executes the script passed in. The notify_needed and notify_data arguments
   // are passed in by the plugin process. These indicate whether the plugin
   // expects a notification on script execution. We pass them back to the
@@ skipping 202 matching lines @@
 
   // Holds the list of argument values passed to the plugin.
   std::vector<std::string> arg_values_;
 
   ScopedRunnableMethodFactory<WebPluginImpl> method_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebPluginImpl);
 };
 
 #endif  // #ifndef WEBKIT_GLUE_WEBPLUGIN_IMPL_H_