Revert of Revert "Remove resetScrollbars" (patchset #1 id:1 of...

Revert of Revert "Remove resetScrollbars" (patchset #1 id:1 of https://codereview.chromium.org/534103003/)

Reason for revert:
This was reverted speculatively and was not the cause of the failure.

Original issue's description:
> Revert "Remove resetScrollbars"
> 
> This reverts commit ebcbf43b12652bf96a1d1d94d8dbb5bdfd363ce6.
> 
> Speculative revert.
> 
> NOTRY=True
> BUG=409708
> TBR=skobes@chromium.org
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=181275

TBR=
NOTREECHECKS=true
NOTRY=true
BUG=409708

Review URL: https://codereview.chromium.org/568303002

git-svn-id: svn://svn.chromium.org/blink/trunk@181958 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/core/frame/FrameView.cpp

@@ -155,7 +155,6 @@ FrameView::~FrameView()
         m_didScrollTimer.stop();
 
     removeFromAXObjectCache();
-    resetScrollbars();
 
     // Custom scrollbars should already be destroyed at this point
     ASSERT(!horizontalScrollbar() || !horizontalScrollbar()->isCustomScrollbar());
@@ -214,18 +213,6 @@ void FrameView::removeFromAXObjectCache()
     }
 }
 
-void FrameView::resetScrollbars()
-{
-    // Reset the document's scrollbars back to our defaults before we yield the floor.
-    m_firstLayout = true;
-    setScrollbarsSuppressed(true);
-    if (m_canHaveScrollbars)
-        setScrollbarModes(ScrollbarAuto, ScrollbarAuto);
-    else
-        setScrollbarModes(ScrollbarAlwaysOff, ScrollbarAlwaysOff);
-    setScrollbarsSuppressed(false);
-}
-
 void FrameView::init()
 {
     reset();