ScriptState::contextIsEmpty shouldn't return true for a context whose global object is detached

Source/bindings/core/v8/ScriptDebugServer.cpp

 /*
  * Copyright (c) 2010-2011 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 624 matching lines @@
 }
 
 
 bool ScriptDebugServer::isPaused()
 {
     return m_pausedScriptState;
 }
 
 void ScriptDebugServer::compileScript(ScriptState* scriptState, const String& expression, const String& sourceURL, String* scriptId, String* exceptionDetailsText, int* lineNumber, int* columnNumber, RefPtrWillBeRawPtr<ScriptCallStack>* stackTrace)
 {
-    if (scriptState->contextIsEmpty())
+    if (scriptState->contextIsValid())
         return;
     ScriptState::Scope scope(scriptState);
 
     v8::Handle<v8::String> source = v8String(m_isolate, expression);
     v8::TryCatch tryCatch;
     v8::Local<v8::Script> script = V8ScriptRunner::compileScript(source, sourceURL, TextPosition(), 0, m_isolate);
     if (tryCatch.HasCaught()) {
         v8::Local<v8::Message> message = tryCatch.Message();
         if (!message.IsEmpty()) {
             *exceptionDetailsText = toCoreStringWithUndefinedOrNullCheck(message->Get());
@@ skipping 19 matching lines @@
 {
     if (!m_compiledScripts.contains(scriptId))
         return;
     v8::HandleScope handleScope(m_isolate);
     ScopedPersistent<v8::Script>* scriptHandle = m_compiledScripts.get(scriptId);
     v8::Local<v8::Script> script = scriptHandle->newLocal(m_isolate);
     m_compiledScripts.remove(scriptId);
     if (script.IsEmpty())
         return;
 
-    if (scriptState->contextIsEmpty())
+    if (scriptState->contextIsValid())
         return;
     ScriptState::Scope scope(scriptState);
     v8::TryCatch tryCatch;
     v8::Local<v8::Value> value = V8ScriptRunner::runCompiledScript(script, scriptState->executionContext(), m_isolate);
     *wasThrown = false;
     if (tryCatch.HasCaught()) {
         *wasThrown = true;
         *result = ScriptValue(scriptState, tryCatch.Exception());
         v8::Local<v8::Message> message = tryCatch.Message();
         if (!message.IsEmpty()) {
@@ skipping 11 matching lines @@
 {
     return PassOwnPtr<ScriptSourceCode>();
 }
 
 String ScriptDebugServer::preprocessEventListener(LocalFrame*, const String& source, const String& url, const String& functionName)
 {
     return source;
 }
 
 } // namespace blink