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

Source/core/testing/Internals.cpp

Index: Source/core/testing/Internals.cpp
diff --git a/Source/core/testing/Internals.cpp b/Source/core/testing/Internals.cpp
index 47c1dadc57fcefb9cafc053d5f267abbc9760ffe..868beee88b195f3b201f5a4574fedb9669b54187 100644
--- a/Source/core/testing/Internals.cpp
+++ b/Source/core/testing/Internals.cpp
@@ -1734,17 +1734,6 @@ void Internals::setDeviceScaleFactor(float scaleFactor, ExceptionCode& ec)
     page->setDeviceScaleFactor(scaleFactor);
 }
 
-void Internals::setPageScaleFactor(float scaleFactor, int x, int y, ExceptionCode& ec)
-{
-    Document* document = contextDocument();
-    if (!document || !document->page()) {
-        ec = INVALID_ACCESS_ERR;
-        return;
-    }
-    Page* page = document->page();
-    page->setPageScaleFactor(scaleFactor, IntPoint(x, y));
-}
-
 void Internals::setIsCursorVisible(Document* document, bool isVisible, ExceptionCode& ec)
 {
     if (!document || !document->page()) {