Fix graphics layer backing and offset for composited selection handles.

third_party/WebKit/Source/core/editing/RenderedPosition.h

 /*
  * Copyright (C) 2011 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 20 matching lines @@
 #ifndef RenderedPosition_h
 #define RenderedPosition_h
 
 #include "core/CoreExport.h"
 #include "core/editing/VisiblePosition.h"
 #include "core/layout/line/InlineBox.h"
 #include "wtf/Allocator.h"
 
 namespace blink {
 
+class GraphicsLayer;
+class LayoutPoint;
 class LayoutUnit;
 class LayoutObject;
 struct CompositedSelectionBound;
 
 class RenderedPosition {
   STACK_ALLOCATED();
 
  public:
   RenderedPosition();
   explicit RenderedPosition(const VisiblePosition&);
@@ skipping 44 matching lines @@
     return m_inlineBox && m_offset == m_inlineBox->caretLeftmostOffset();
   }
   bool atRightmostOffsetInBox() const {
     return m_inlineBox && m_offset == m_inlineBox->caretRightmostOffset();
   }
   bool atLeftBoundaryOfBidiRun(ShouldMatchBidiLevel,
                                unsigned char bidiLevelOfRun) const;
   bool atRightBoundaryOfBidiRun(ShouldMatchBidiLevel,
                                 unsigned char bidiLevelOfRun) const;
 
+  FloatPoint localToInvalidationBackingPoint(
+      const LayoutPoint& localPoint,
+      GraphicsLayer** graphicsLayerBacking) const;
+
   LayoutObject* m_layoutObject;
   InlineBox* m_inlineBox;
   int m_offset;
 
   static InlineBox* uncachedInlineBox() {
     return reinterpret_cast<InlineBox*>(1);
   }
   // Needs to be different form 0 so pick 1 because it's also on the null page.
 
   mutable InlineBox* m_prevLeafChild;
@@ skipping 14 matching lines @@
       m_inlineBox(box),
       m_offset(offset),
       m_prevLeafChild(uncachedInlineBox()),
       m_nextLeafChild(uncachedInlineBox()) {}
 
 CORE_EXPORT bool layoutObjectContainsPosition(LayoutObject*, const Position&);
 
 }  // namespace blink
 
 #endif  // RenderedPosition_h