Remove top controls clipping adjustment for document.rootScroller

third_party/WebKit/Source/core/page/scrolling/TopDocumentRootScrollerController.h

 // Copyright 2016 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.
 
 #ifndef TopDocumentRootScrollerController_h
 #define TopDocumentRootScrollerController_h
 
 #include "core/CoreExport.h"
 #include "core/page/scrolling/RootScrollerController.h"
 #include "platform/geometry/IntSize.h"
@@ skipping 47 matching lines @@
   GraphicsLayer* rootScrollerLayer() const;
 
   PaintLayer* rootScrollerPaintLayer() const;
 
   // Returns the Element that's the global root scroller.
   Element* globalRootScroller() const;
 
   // Called when the root scroller in any frames on the page has changed.
   void didChangeRootScroller();
 
-  void mainFrameViewResized();
-
   // Returns the ScrollableArea associated with the globalRootScroller(). Note,
   // this isn't necessarily the PLSA belonging to the root scroller Element's
   // LayoutBox.  If the root scroller is the documentElement then we use the
   // FrameView (or LayoutView if root-layer-scrolls).
   ScrollableArea* rootScrollerArea() const;
 
   // Returns the size we should use for the root scroller, accounting for top
   // controls adjustment and using the root FrameView.
   IntSize rootScrollerVisibleArea() const;
 
@@ skipping 23 matching lines @@
   // m_viewportApplyScroll has been created, it will always be set on this
   // Element.
   WeakMember<Element> m_globalRootScroller;
 
   Member<Page> m_page;
 };
 
 }  // namespace blink
 
 #endif  // RootScrollerController_h