linux: only create browser-side plugin container after plugin requests it

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 95 matching lines @@
   static void ReadHttpResponseInfo(const WebCore::ResourceResponse& response,
                                    HttpResponseInfo* http_response);
 
  private:
   WebPluginImpl* impl_;
   // Set to true if the next response error should be ignored.
   bool ignore_response_error_;
 };
 
 // This is the WebKit side of the plugin implementation that forwards calls,
-// after changing out of WebCore types, to a delegate.  The delegate will
+// after changing out of WebCore types, to a delegate.  The delegate may
 // be in a different process.
 class WebPluginImpl : public WebPlugin,
                       public WebKit::WebURLLoaderClient {
  public:
   // Creates a WebPlugin instance, as long as the delegate's initialization
   // succeeds.  If it fails, the delegate is deleted and NULL is returned.
   // Note that argn and argv are UTF8.
   static WebCore::Widget* Create(const GURL& url,
                                  char** argn,
                                  char** argv,
@@ skipping 14 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:
+#if defined(OS_LINUX)
+  gfx::PluginWindowHandle CreatePluginContainer();
+#endif
   void SetWindow(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
@@ skipping 204 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_