LayoutBox::scrollRectToVisible doesn't respect overflow:hidden property.

third_party/WebKit/Source/platform/scroll/ScrollableArea.h

 /*
  * Copyright (C) 2008, 2011 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 76 matching lines @@
 
     virtual void setScrollPosition(const DoublePoint&, ScrollType, ScrollBehavior = ScrollBehaviorInstant);
     virtual void scrollBy(const DoubleSize&, ScrollType, ScrollBehavior = ScrollBehaviorInstant);
     void setScrollPositionSingleAxis(ScrollbarOrientation, double, ScrollType, ScrollBehavior = ScrollBehaviorInstant);
 
     // Scrolls the area so that the given rect, given in the document's content coordinates, such that it's
     // visible in the area. Returns the new location of the input rect relative once again to the document.
     // Note, in the case of a Document container, such as FrameView, the output will always be the input rect
     // since scrolling it can't change the location of content relative to the document, unlike an overflowing
     // element.
-    virtual LayoutRect scrollIntoView(const LayoutRect& rectInContent, const ScrollAlignment& alignX, const ScrollAlignment& alignY);
+    virtual LayoutRect scrollIntoView(const LayoutRect& rectInContent, const ScrollAlignment& alignX, const ScrollAlignment& alignY, ScrollType = ProgrammaticScroll);
 
     static bool scrollBehaviorFromString(const String&, ScrollBehavior&);
 
     bool inLiveResize() const { return m_inLiveResize; }
     void willStartLiveResize();
     void willEndLiveResize();
 
     void contentAreaWillPaint() const;
     void mouseEnteredContentArea() const;
     void mouseExitedContentArea() const;
@@ skipping 253 matching lines @@
     // vertical-lr / ltr            NO                      NO
     // vertical-lr / rtl            NO                      YES
     // vertical-rl / ltr            YES                     NO
     // vertical-rl / rtl            YES                     YES
     IntPoint m_scrollOrigin;
 };
 
 } // namespace blink
 
 #endif // ScrollableArea_h