Have Frame::script() return a reference

Source/core/frame/ContentSecurityPolicy.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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 1866 matching lines @@
 bool ContentSecurityPolicy::experimentalFeaturesEnabled() const
 {
     return RuntimeEnabledFeatures::experimentalContentSecurityPolicyFeaturesEnabled();
 }
 
 bool ContentSecurityPolicy::shouldBypassMainWorld(ExecutionContext* context)
 {
     if (context && context->isDocument()) {
         Document* document = toDocument(context);
         if (document->frame())
-            return document->frame()->script()->shouldBypassMainWorldContentSecurityPolicy();
+            return document->frame()->script().shouldBypassMainWorldContentSecurityPolicy();
     }
     return false;
 }
 
 bool ContentSecurityPolicy::shouldSendViolationReport(const String& report) const
 {
     // Collisions have no security impact, so we can save space by storing only the string's hash rather than the whole report.
     return !m_violationReportsSent.contains(report.impl()->hash());
 }
 
 void ContentSecurityPolicy::didSendViolationReport(const String& report)
 {
     m_violationReportsSent.add(report.impl()->hash());
 }
 
 } // namespace WebCore