Remove unneeded Convert* methods and move many from FrameViewBase to FrameView

third_party/WebKit/Source/core/paint/PaintLayerScrollableArea.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights
  * reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@gmail.com>
@@ skipping 311 matching lines @@
   if (!view)
     return scrollbar_rect;
 
   IntRect rect = scrollbar_rect;
   rect.Move(ScrollbarOffset(scrollbar));
 
   return view->GetFrameView()->ConvertFromLayoutItem(LayoutBoxItem(&Box()),
                                                      rect);
 }
 
-IntRect PaintLayerScrollableArea::ConvertFromContainingFrameViewBaseToScrollbar(
-    const Scrollbar& scrollbar,
-    const IntRect& parent_rect) const {
-  LayoutView* view = Box().View();
-  if (!view)
-    return parent_rect;
-
-  IntRect rect = view->GetFrameView()->ConvertToLayoutItem(
-      LayoutBoxItem(&Box()), parent_rect);
-  rect.Move(-ScrollbarOffset(scrollbar));
-  return rect;
-}
-
 IntPoint
 PaintLayerScrollableArea::ConvertFromScrollbarToContainingFrameViewBase(
     const Scrollbar& scrollbar,
     const IntPoint& scrollbar_point) const {
   LayoutView* view = Box().View();
   if (!view)
     return scrollbar_point;
 
   IntPoint point = scrollbar_point;
   point.Move(ScrollbarOffset(scrollbar));
@@ skipping 1782 matching lines @@
 
 void PaintLayerScrollableArea::DelayScrollOffsetClampScope::
     ClampScrollableAreas() {
   for (auto& scrollable_area : *needs_clamp_)
     scrollable_area->ClampScrollOffsetAfterOverflowChange();
   delete needs_clamp_;
   needs_clamp_ = nullptr;
 }
 
 }  // namespace blink