Fix positioning of "text-underline-position:under" for multi-elements

third_party/WebKit/Source/core/layout/line/InlineFlowBox.h

Index: third_party/WebKit/Source/core/layout/line/InlineFlowBox.h
diff --git a/third_party/WebKit/Source/core/layout/line/InlineFlowBox.h b/third_party/WebKit/Source/core/layout/line/InlineFlowBox.h
index acf143bc97088ab3e65da4b38df9a7cae9aa5596..7cf8ddd3b51922418453d0e1917d708c1d1fbbbb 100644
--- a/third_party/WebKit/Source/core/layout/line/InlineFlowBox.h
+++ b/third_party/WebKit/Source/core/layout/line/InlineFlowBox.h
@@ -393,6 +393,11 @@ class InlineFlowBox : public InlineBox {
                                 lineTop, lineBottom);
   }
 
+  LayoutUnit maxLogicalBottomForUnderline(LineLayoutItem decorationObject,
+                                          LayoutUnit maxLogicalBottom) const;
+  LayoutUnit minLogicalTopForUnderline(LineLayoutItem decorationObject,
+                                       LayoutUnit minLogicalTop) const;
+
  private:
   void placeBoxRangeInInlineDirection(InlineBox* firstChild,
                                       InlineBox* lastChild,
@@ -443,10 +448,6 @@ class InlineFlowBox : public InlineBox {
       m_prevLineBox;  // The previous box that also uses our LayoutObject
   InlineFlowBox* m_nextLineBox;  // The next box that also uses our LayoutObject
 
-  // Maximum logicalTop among all children of an InlineFlowBox. Used to
-  // calculate the offset for TextUnderlinePositionUnder.
-  void computeMaxLogicalTop(LayoutUnit& maxLogicalTop) const;
-
  private:
   unsigned m_includeLogicalLeftEdge : 1;
   unsigned m_includeLogicalRightEdge : 1;