Have Frame::script() return a reference

Source/core/inspector/InspectorAgent.cpp

 /*
  * Copyright (C) 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Matt Lilek <webkit@mattlilek.com>
  * 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 68 matching lines @@
     String origin = frame->document()->securityOrigin()->toRawString();
     String script = m_injectedScriptForOrigin.get(origin);
     if (script.isEmpty())
         return;
     int injectedScriptId = m_injectedScriptManager->injectedScriptIdFor(mainWorldScriptState(frame));
     StringBuilder scriptSource;
     scriptSource.append(script);
     scriptSource.append("(");
     scriptSource.appendNumber(injectedScriptId);
     scriptSource.append(")");
-    frame->script()->executeScriptInMainWorld(scriptSource.toString());
+    frame->script().executeScriptInMainWorld(scriptSource.toString());
 }
 
 void InspectorAgent::setFrontend(InspectorFrontend* inspectorFrontend)
 {
     m_frontend = inspectorFrontend;
 }
 
 void InspectorAgent::clearFrontend()
 {
     m_pendingEvaluateTestCommands.clear();
@@ skipping 78 matching lines @@
 
 KURL InspectorAgent::inspectedURLWithoutFragment() const
 {
     KURL url = inspectedURL();
     url.removeFragmentIdentifier();
     return url;
 }
 
 } // namespace WebCore