FrameView shouldn't apply scroll anchoring when root layer scrolling is enabled

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

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/paint/PaintInvalidationCapableScrollableArea.h"
 
 #include "core/frame/Settings.h"
 #include "core/html/HTMLFrameOwnerElement.h"
 #include "core/layout/LayoutBox.h"
 #include "core/layout/LayoutScrollbar.h"
@@ skipping 117 matching lines @@
     fullBounds.unite(m_verticalScrollbarPreviousPaintInvalidationRect);
     fullBounds.unite(m_scrollCornerAndResizerPreviousPaintInvalidationRect);
     return fullBounds;
 }
 
 void PaintInvalidationCapableScrollableArea::scrollControlWasSetNeedsPaintInvalidation()
 {
     layoutBox()->setMayNeedPaintInvalidation();
 }
 
-bool PaintInvalidationCapableScrollableArea::shouldPerformScrollAnchoring() const
-{
-    return RuntimeEnabledFeatures::scrollAnchoringEnabled()
-        && layoutBox()->style()->overflowAnchor() != AnchorNone;
-}
-
 } // namespace blink