Don't count UseCounters in private scripts

Source/bindings/core/v8/custom/V8CSSStyleDeclarationCustom.cpp

 /*
  * Copyright (C) 2007-2011 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 82 matching lines @@
     StringBuilder builder;
     builder.reserveCapacity(length);
 
     unsigned i = 0;
     bool hasSeenDash = false;
 
     if (hasCSSPropertyNamePrefix(propertyName, "css")) {
         i += 3;
         // getComputedStyle(elem).cssX is a non-standard behaviour
         // Measure this behaviour as CSSXGetComputedStyleQueries.
-        UseCounter::count(callingExecutionContext(isolate), UseCounter::CSSXGetComputedStyleQueries);
+        UseCounter::countIfNotPrivateScript(isolate, callingExecutionContext(isolate), UseCounter::CSSXGetComputedStyleQueries);
     } else if (hasCSSPropertyNamePrefix(propertyName, "webkit"))
         builder.append('-');
     else if (isASCIIUpper(propertyName[0]))
         return CSSPropertyInvalid;
 
     bool hasSeenUpper = isASCIIUpper(propertyName[i]);
 
     builder.append(toASCIILower(propertyName[i++]));
 
     for (; i < length; ++i) {
@@ skipping 114 matching lines @@
     ExceptionState exceptionState(ExceptionState::SetterContext, getPropertyName(static_cast<CSSPropertyID>(propInfo->propID)), "CSSStyleDeclaration", info.Holder(), info.GetIsolate());
     impl->setPropertyInternal(static_cast<CSSPropertyID>(propInfo->propID), propertyValue, false, exceptionState);
 
     if (exceptionState.throwIfNeeded())
         return;
 
     v8SetReturnValue(info, value);
 }
 
 } // namespace blink