Make DOMWrapperWorld::current() callable from workers

Source/bindings/v8/PageScriptDebugServer.cpp

 /*
  * Copyright (c) 2011 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 38 matching lines @@
 #include "wtf/TemporaryChange.h"
 #include "wtf/text/StringBuilder.h"
 
 namespace WebCore {
 
 static LocalFrame* retrieveFrameWithGlobalObjectCheck(v8::Handle<v8::Context> context)
 {
     if (context.IsEmpty())
         return 0;
 
-    // Test that context has associated global dom window object.
-    if (!V8WindowShell::contextHasCorrectPrototype(context))
+    // FIXME: This is a temporary hack for crbug.com/345014.
+    // Currently it's possible that V8 can trigger Debugger::ProcessDebugEvent for a context
+    // that is being initialized (i.e., inside Context::New() of the context).
+    // We should fix the V8 side so that it won't trigger the event for a half-baked context
+    // because there is no way in the embedder side to check if the context is half-baked or not.
+    if (V8WindowShell::contextIsBeingInitialized())
         return 0;
 
     v8::Handle<v8::Value> global = V8Window::findInstanceInPrototypeChain(context->Global(), context->GetIsolate());
     if (global.IsEmpty())
         return 0;
 
     return toFrameIfNotDetached(context);
 }
 
 void PageScriptDebugServer::setPreprocessorSource(const String& preprocessorSource)
@@ skipping 200 matching lines @@
 
 String PageScriptDebugServer::preprocessEventListener(LocalFrame* frame, const String& source, const String& url, const String& functionName)
 {
     if (!canPreprocess(frame))
         return source;
 
     return m_scriptPreprocessor->preprocessSourceCode(source, url, functionName);
 }
 
 } // namespace WebCore