Clean up some remaining obsolete coordinate-space naming.

third_party/WebKit/Source/platform/exported/WebScrollbarThemeClientImpl.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 40 matching lines @@
     IntPoint location() const override;
     Widget* parent() const override;
     Widget* root() const override;
     void setFrameRect(const IntRect&) override;
     IntRect frameRect() const override;
     void invalidate() override;
     void invalidateRect(const IntRect&) override;
     ScrollbarOverlayStyle scrollbarOverlayStyle() const override;
     void getTickmarks(Vector<IntRect>&) const override;
     bool isScrollableAreaActive() const override;
-    IntPoint convertFromContainingWindow(const IntPoint&) const override;
+    IntPoint convertFromRootFrame(const IntPoint&) const override;
     bool isCustomScrollbar() const override;
     ScrollbarOrientation orientation() const override;
     bool isLeftSideVerticalScrollbar() const override;
     int value() const override;
     float currentPos() const override;
     int visibleSize() const override;
     int totalSize() const override;
     int maximum() const override;
     ScrollbarControlSize controlSize() const override;
     ScrollbarPart pressedPart() const override;
@@ skipping 14 matching lines @@
     DisplayItemClient displayItemClient() const override;
     String debugName() const override;
 
 private:
     WebScrollbar* m_scrollbar;
 };
 
 } // namespace blink
 
 #endif // WebScrollbarThemeClientImpl_h