Fix overflow:overlay scrollbar width for paint.

third_party/WebKit/Source/core/paint/ClipRectsCache.h

 // Copyright 2014 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 ClipRectsCache_h
 #define ClipRectsCache_h
 
 #include "core/paint/ClipRects.h"
 
 #if DCHECK_IS_ON()
@@ skipping 23 matching lines @@
 
 class ClipRectsCache {
   USING_FAST_MALLOC(ClipRectsCache);
 
  public:
   struct Entry {
     Entry()
         : root(nullptr)
 #if DCHECK_IS_ON()
           ,
-          overlayScrollbarClipBehavior(IgnoreOverlayScrollbarSize)
+          overlayScrollbarClipBehavior(IgnorePlatformOverlayScrollbarSize)
 #endif
     {
     }
     const PaintLayer* root;
     RefPtr<ClipRects> clipRects;
 #if DCHECK_IS_ON()
     OverlayScrollbarClipBehavior overlayScrollbarClipBehavior;
 #endif
   };
   Entry& get(ClipRectsCacheSlot slot) {
     DCHECK(slot < NumberOfClipRectsCacheSlots);
     return m_entries[slot];
   }
   void clear(ClipRectsCacheSlot slot) {
     DCHECK(slot < NumberOfClipRectsCacheSlots);
     m_entries[slot] = Entry();
   }
 
  private:
   Entry m_entries[NumberOfClipRectsCacheSlots];
 };
 
 }  // namespace blink
 
 #endif  // ClipRectsCache_h