Have Frame::script() return a reference

Source/core/frame/ContentSecurityPolicy.cpp

Index: Source/core/frame/ContentSecurityPolicy.cpp
diff --git a/Source/core/frame/ContentSecurityPolicy.cpp b/Source/core/frame/ContentSecurityPolicy.cpp
index 9d7e6a3c4d8f60f3de6a7d2ef089705e753daaf5..7d76a0375b28a35365265a0b830ee8c9e141e624 100644
--- a/Source/core/frame/ContentSecurityPolicy.cpp
+++ b/Source/core/frame/ContentSecurityPolicy.cpp
@@ -1884,7 +1884,7 @@ 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;
 }