linux: cleanup browser-side GtkSockets when plugins are destroyed

webkit/tools/test_shell/webview_host.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_TOOLS_TEST_SHELL_WEBVIEW_HOST_H_
 #define WEBKIT_TOOLS_TEST_SHELL_WEBVIEW_HOST_H_
 
 #include <map>
 
 #include "base/basictypes.h"
@@ skipping 23 matching lines @@
 
 #if defined(OS_LINUX)
   // Create a new plugin parent container, returning its X window id for
   // embedders to use.
   GdkNativeWindow CreatePluginContainer();
 
   // Map a GdkNativeWindow returned by CreatePluginContainer() back to
   // the GtkWidget hosting it.  Used when we get a message back from the
   // renderer indicating a plugin needs to move.
   GtkWidget* MapIDToWidget(GdkNativeWindow id);
+
+  // Called when a plugin has been destroyed.  Lets us clean up our side.
+  void OnPluginWindowDestroyed(GdkNativeWindow id);
 #endif
 
  protected:
 #if defined(OS_WIN)
   virtual bool WndProc(UINT message, WPARAM wparam, LPARAM lparam) {
     return false;
   }
 #endif
 
 #if defined(OS_LINUX)
   // A map used for MapIDToWidget() above.
   typedef std::map<GdkNativeWindow, GtkWidget*> NativeWindowToWidgetMap;
   NativeWindowToWidgetMap native_window_to_widget_map_;
 
   // Callback for when one of our plugins goes away.
   static gboolean OnPlugRemovedThunk(GtkSocket* socket,
                                      WebViewHost* web_view_host) {
     return web_view_host->OnPlugRemoved(socket);
   }
   gboolean OnPlugRemoved(GtkSocket* socket);
 #endif
 };
 
 #endif  // WEBKIT_TOOLS_TEST_SHELL_WEBVIEW_HOST_H_