Have Frame::script() return a reference

Source/web/WebDevToolsAgentImpl.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 260 matching lines @@
     if (InspectorController* ic = inspectorController())
         ic->didComposite();
 }
 
 void WebDevToolsAgentImpl::didCreateScriptContext(WebFrameImpl* webframe, int worldId)
 {
     // Skip non main world contexts.
     if (worldId)
         return;
     if (WebCore::Frame* frame = webframe->frame())
-        frame->script()->setContextDebugId(m_hostId);
+        frame->script().setContextDebugId(m_hostId);
 }
 
 void WebDevToolsAgentImpl::webViewResized(const WebSize& size)
 {
     if (InspectorController* ic = inspectorController())
         ic->webViewResized(IntSize());
 }
 
 bool WebDevToolsAgentImpl::handleInputEvent(WebCore::Page* page, const WebInputEvent& inputEvent)
 {
@@ skipping 288 matching lines @@
         || commandName == InspectorBackendDispatcher::commandNames[InspectorBackendDispatcher::kProfiler_getCPUProfileCmd]
         || commandName == InspectorBackendDispatcher::commandNames[InspectorBackendDispatcher::kHeapProfiler_getHeapSnapshotCmd];
 }
 
 void WebDevToolsAgent::processPendingMessages()
 {
     PageScriptDebugServer::shared().runPendingTasks();
 }
 
 } // namespace WebKit