Have Frame::script() return a reference

Source/core/inspector/PageRuntimeAgent.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 144 matching lines @@
 
 void PageRuntimeAgent::unmuteConsole()
 {
     PageConsole::unmute();
 }
 
 void PageRuntimeAgent::reportExecutionContextCreation()
 {
     Vector<std::pair<ScriptState*, SecurityOrigin*> > isolatedContexts;
     for (Frame* frame = m_inspectedPage->mainFrame(); frame; frame = frame->tree().traverseNext()) {
-        if (!frame->script()->canExecuteScripts(NotAboutToExecuteScript))
+        if (!frame->script().canExecuteScripts(NotAboutToExecuteScript))
             continue;
         String frameId = m_pageAgent->frameId(frame);
 
         ScriptState* scriptState = mainWorldScriptState(frame);
         notifyContextCreated(frameId, scriptState, 0, true);
-        frame->script()->collectIsolatedContexts(isolatedContexts);
+        frame->script().collectIsolatedContexts(isolatedContexts);
         if (isolatedContexts.isEmpty())
             continue;
         for (size_t i = 0; i< isolatedContexts.size(); i++)
             notifyContextCreated(frameId, isolatedContexts[i].first, isolatedContexts[i].second, false);
         isolatedContexts.clear();
     }
 }
 
 void PageRuntimeAgent::notifyContextCreated(const String& frameId, ScriptState* scriptState, SecurityOrigin* securityOrigin, bool isPageContext)
 {
     ASSERT(securityOrigin || isPageContext);
     int executionContextId = injectedScriptManager()->injectedScriptIdFor(scriptState);
     String name = securityOrigin ? securityOrigin->toRawString() : "";
     m_frontend->executionContextCreated(ExecutionContextDescription::create()
         .setId(executionContextId)
         .setIsPageContext(isPageContext)
         .setName(name)
         .setFrameId(frameId)
         .release());
 }
 
 } // namespace WebCore