Fix tests to avoid page scale reset when setting page scale.

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 1797 matching lines @@
 {
     Document* document = contextDocument();
     if (!document || !document->page()) {
         es.throwDOMException(InvalidAccessError);
         return;
     }
     Page* page = document->page();
     page->setDeviceScaleFactor(scaleFactor);
 }
 
-void Internals::setPageScaleFactor(float scaleFactor, int x, int y, ExceptionState& es)
-{
-    Document* document = contextDocument();
-    if (!document || !document->page()) {
-        es.throwDOMException(InvalidAccessError);
-        return;
-    }
-    Page* page = document->page();
-    page->setPageScaleFactor(scaleFactor, IntPoint(x, y));
-}
-
 void Internals::setIsCursorVisible(Document* document, bool isVisible, ExceptionState& es)
 {
     if (!document || !document->page()) {
         es.throwDOMException(InvalidAccessError);
         return;
     }
     document->page()->setIsCursorVisible(isVisible);
 }
 
 void Internals::webkitWillEnterFullScreenForElement(Document* document, Element* element)
@@ skipping 242 matching lines @@
         return false;
     sharedContext->getExtensions()->loseContextCHROMIUM(Extensions3D::GUILTY_CONTEXT_RESET_ARB, Extensions3D::INNOCENT_CONTEXT_RESET_ARB);
     // To prevent tests that call loseSharedGraphicsContext3D from being
     // flaky, we call finish so that the context is guaranteed to be lost
     // synchronously (i.e. before returning).
     sharedContext->finish();
     return true;
 }
 
 }