Add notifications for when V8Proxy creates or destroys a V8 Context.

webkit/glue/webframe_impl.cc

 /*
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 806 matching lines @@
   FrameContentAsPlainText(max_chars, frame_, text);
 }
 
 NPObject* WebFrameImpl::GetWindowNPObject() {
   if (!frame_)
     return NULL;
 
   return frame_->script()->windowScriptNPObject();
 }
 
+#if USE(V8)
+  // Returns the V8 context for this frame, or an empty handle if there is
+  // none.
+v8::Local<v8::Context> WebFrameImpl::GetScriptContext() {
+  if (!frame_)
+    return v8::Local<v8::Context>();
+
+  return frame_->script()->proxy()->GetContext();
+}
+#endif
+
 void WebFrameImpl::InvalidateArea(AreaToInvalidate area) {
   ASSERT(frame() && frame()->view());
 #if defined(OS_WIN) || defined(OS_LINUX)
   // TODO(pinkerton): Fix Mac invalidation to be more like Win ScrollView
   FrameView* view = frame()->view();
 
   if ((area & INVALIDATE_ALL) == INVALIDATE_ALL) {
     view->invalidateRect(view->frameRect());
   } else {
     if ((area & INVALIDATE_CONTENT_AREA) == INVALIDATE_CONTENT_AREA) {
@@ skipping 1070 matching lines @@
   return password_listeners_.get(input_element);
 }
 
 void WebFrameImpl::ClearPasswordListeners() {
   for (PasswordListenerMap::iterator iter = password_listeners_.begin();
        iter != password_listeners_.end(); ++iter) {
     delete iter->second;
   }
   password_listeners_.clear();
 }