Move line-specific code into LayoutBlockFlow::positionForPoint().

third_party/WebKit/Source/core/layout/LayoutBlock.h

Index: third_party/WebKit/Source/core/layout/LayoutBlock.h
diff --git a/third_party/WebKit/Source/core/layout/LayoutBlock.h b/third_party/WebKit/Source/core/layout/LayoutBlock.h
index 34dab449f2ab9d7254153154c9b31930beeca8b9..8911bde3960bc479bd8b3012e0193367ececaa86 100644
--- a/third_party/WebKit/Source/core/layout/LayoutBlock.h
+++ b/third_party/WebKit/Source/core/layout/LayoutBlock.h
@@ -431,7 +431,6 @@ private:
     bool isInlineBoxWrapperActuallyChild() const;
 
     Position positionForBox(InlineBox*, bool start = true) const;
-    PositionWithAffinity positionForPointWithInlineChildren(const LayoutPoint&);
 
     // End helper functions and structs used by layoutBlockChildren.
 
@@ -475,6 +474,9 @@ protected:
     // Adjust from painting offsets to the local coords of this layoutObject
     void offsetForContents(LayoutPoint&) const;
 
+    PositionWithAffinity positionForPointRespectingEditingBoundaries(LineLayoutBox child, const LayoutPoint& pointInParentCoordinates);
+    PositionWithAffinity positionForPointIfOutsideAtomicInlineLevel(const LayoutPoint&);
+
     virtual bool updateLogicalWidthAndColumnWidth();
 
     virtual bool canCollapseAnonymousBlockChild() const { return true; }