Have Frame::script() return a reference

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 72 matching lines @@
 }
 
 PageScriptDebugServer::PageScriptDebugServer()
     : ScriptDebugServer(v8::Isolate::GetCurrent())
     , m_pausedPage(0)
 {
 }
 
 void PageScriptDebugServer::addListener(ScriptDebugListener* listener, Page* page)
 {
-    ScriptController* scriptController = page->mainFrame()->script();
-    if (!scriptController->canExecuteScripts(NotAboutToExecuteScript))
+    ScriptController& scriptController = page->mainFrame()->script();
+    if (!scriptController.canExecuteScripts(NotAboutToExecuteScript))
         return;
 
     v8::HandleScope scope(m_isolate);
     v8::Local<v8::Context> debuggerContext = v8::Debug::GetDebugContext();
     v8::Context::Scope contextScope(debuggerContext);
 
     v8::Local<v8::Object> debuggerScript = m_debuggerScript.newLocal(m_isolate);
     if (!m_listenersMap.size()) {
         ensureDebuggerScriptCompiled();
         ASSERT(!debuggerScript->IsUndefined());
         v8::Debug::SetDebugEventListener2(&PageScriptDebugServer::v8DebugEventCallback, v8::External::New(this));
     }
     m_listenersMap.set(page, listener);
 
-    V8WindowShell* shell = scriptController->existingWindowShell(mainThreadNormalWorld());
+    V8WindowShell* shell = scriptController.existingWindowShell(mainThreadNormalWorld());
     if (!shell || !shell->isContextInitialized())
         return;
     v8::Local<v8::Context> context = shell->context();
     v8::Handle<v8::Function> getScriptsFunction = v8::Local<v8::Function>::Cast(debuggerScript->Get(v8::String::NewSymbol("getScripts")));
     v8::Handle<v8::Value> argv[] = { context->GetEmbedderData(0) };
     v8::Handle<v8::Value> value = V8ScriptRunner::callInternalFunction(getScriptsFunction, debuggerScript, WTF_ARRAY_LENGTH(argv), argv, m_isolate);
     if (value.IsEmpty())
         return;
     ASSERT(!value->IsUndefined() && value->IsArray());
     v8::Handle<v8::Array> scriptsArray = v8::Handle<v8::Array>::Cast(value);
@@ skipping 151 matching lines @@
 
 String PageScriptDebugServer::preprocessEventListener(Frame* frame, const String& source, const String& url, const String& functionName)
 {
     if (!canPreprocess(frame))
         return source;
 
     return m_scriptPreprocessor->preprocessSourceCode(source, url, functionName);
 }
 
 } // namespace WebCore