fix antother webshell leak. Add a CleanUp method to the global window. When the global window is told it is closing,

call the CleanUp method to force it to release all of it's state.
r=vidur, a=chofmann

dom/src/base/nsGlobalWindow.cpp

@@ -181,8 +181,8 @@ GlobalWindowImpl::GlobalWindowImpl()
   mWebShell = nsnull;
 }
 
-GlobalWindowImpl::~GlobalWindowImpl() 
-{  
+void GlobalWindowImpl::CleanUp()
+{
   NS_IF_RELEASE(mContext);
   NS_IF_RELEASE(mDocument);
   NS_IF_RELEASE(mNavigator);
@@ -200,6 +200,11 @@ GlobalWindowImpl::~GlobalWindowImpl()
   NS_IF_RELEASE(mListenerManager);
 }
 
+GlobalWindowImpl::~GlobalWindowImpl() 
+{  
+  CleanUp();
+}
+
 NS_IMPL_ADDREF(GlobalWindowImpl)
 NS_IMPL_RELEASE(GlobalWindowImpl)
 
@@ -1348,6 +1353,8 @@ GlobalWindowImpl::Close()
     mBrowser->Close();
     NS_RELEASE(mBrowser);
   }
+
+  CleanUp();
   return NS_OK;
 }
 

dom/src/base/nsGlobalWindow.h

@@ -297,6 +297,8 @@ protected:
   nsDOMWindowList *mFrames;
 
   PRBool mFirstDocumentLoad;
+
+  void CleanUp(); 
 };
 
 /*