Make window.screen property non replaceable

Source/core/testing/Internals.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple 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.
@@ skipping 64 matching lines @@
 #include "core/editing/SpellCheckRequester.h"
 #include "core/editing/SpellChecker.h"
 #include "core/editing/SurroundingText.h"
 #include "core/editing/TextIterator.h"
 #include "core/fetch/MemoryCache.h"
 #include "core/fetch/ResourceFetcher.h"
 #include "core/frame/DOMPoint.h"
 #include "core/frame/DOMWindow.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
+#include "core/frame/Screen.h"
 #include "core/frame/Settings.h"
 #include "core/html/HTMLContentElement.h"
 #include "core/html/HTMLIFrameElement.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/html/HTMLMediaElement.h"
 #include "core/html/HTMLSelectElement.h"
 #include "core/html/HTMLTextAreaElement.h"
 #include "core/html/forms/FormController.h"
 #include "core/html/shadow/ShadowElementNames.h"
 #include "core/html/shadow/TextControlInnerElements.h"
@@ skipping 84 matching lines @@
 
 void Internals::resetToConsistentState(Page* page)
 {
     ASSERT(page);
 
     page->setDeviceScaleFactor(1);
     page->setIsCursorVisible(true);
     page->setPageScaleFactor(1, IntPoint(0, 0));
     TextRun::setAllowsRoundingHacks(false);
     WebCore::overrideUserPreferredLanguages(Vector<AtomicString>());
+    Screen::clearOverrideScreenData();
     delete s_pagePopupDriver;
     s_pagePopupDriver = 0;
     page->chrome().client().resetPagePopupDriver();
     if (!page->mainFrame()->spellChecker().isContinuousSpellCheckingEnabled())
         page->mainFrame()->spellChecker().toggleContinuousSpellChecking();
     if (page->mainFrame()->editor().isOverwriteModeEnabled())
         page->mainFrame()->editor().toggleOverwriteModeEnabled();
 
     if (ScrollingCoordinator* scrollingCoordinator = page->scrollingCoordinator())
         scrollingCoordinator->reset();
@@ skipping 2231 matching lines @@
 
 String Internals::textSurroundingNode(Node* node, int x, int y, unsigned long maxLength)
 {
     if (!node)
         return String();
     blink::WebPoint point(x, y);
     SurroundingText surroundingText(VisiblePosition(node->renderer()->positionForPoint(static_cast<IntPoint>(point))), maxLength);
     return surroundingText.content();
 }
 
+void Internals::setOverrideScreenData(const Dictionary& overrideData)
+{
+    Screen::setOverrideScreenData(overrideData);
 }
+
+}