Revert change 20173 because it breaks the ui_tests, plugin_tests...

chrome/plugin/webplugin_proxy.h

Index: chrome/plugin/webplugin_proxy.h
===================================================================
--- chrome/plugin/webplugin_proxy.h	(revision 20179)
+++ chrome/plugin/webplugin_proxy.h	(working copy)
@@ -16,7 +16,6 @@
 #include "chrome/common/ipc_message.h"
 #include "chrome/common/chrome_plugin_api.h"
 #include "chrome/common/transport_dib.h"
-#include "googleurl/src/gurl.h"
 #include "webkit/glue/webplugin.h"
 
 namespace base {
@@ -34,8 +33,7 @@
   // marshalled WebPlugin calls.
   WebPluginProxy(PluginChannel* channel,
                  int route_id,
-                 WebPluginDelegate* delegate,
-                 const GURL& page_url);
+                 WebPluginDelegate* delegate);
   ~WebPluginProxy();
 
   // WebPlugin overrides
@@ -158,8 +156,6 @@
   gfx::Rect damaged_rect_;
   bool waiting_for_paint_;
   scoped_ptr<base::WaitableEvent> modal_dialog_event_;
-  // The url of the main frame hosting the plugin.
-  GURL page_url_;
 
 #if defined(OS_WIN)
   // Variables used for desynchronized windowless plugin painting.  See note in