Don't paint underline or selections over ellipsis in mixed-flow contexts

third_party/WebKit/Source/core/paint/TextPainter.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 TextPainter_h
 #define TextPainter_h
 
 #include "core/CoreExport.h"
 #include "core/style/ComputedStyleConstants.h"
 #include "platform/fonts/TextBlob.h"
@@ skipping 29 matching lines @@
               const TextRun&,
               const LayoutPoint& textOrigin,
               const LayoutRect& textBounds,
               bool horizontal);
   ~TextPainter();
 
   void setEmphasisMark(const AtomicString&, TextEmphasisPosition);
   void setCombinedText(LayoutTextCombine* combinedText) {
     m_combinedText = combinedText;
   }
+  void setEllipsisOffset(int offset) { m_ellipsisOffset = offset; }
 
   static void updateGraphicsContext(GraphicsContext&,
                                     const Style&,
                                     bool horizontal,
                                     GraphicsContextStateSaver&);
 
   void clipDecorationsStripe(float upper, float stripeWidth, float dilation);
   void paint(unsigned startOffset,
              unsigned endOffset,
              unsigned length,
@@ skipping 50 matching lines @@
 
   GraphicsContext& m_graphicsContext;
   const Font& m_font;
   const TextRun& m_run;
   LayoutPoint m_textOrigin;
   LayoutRect m_textBounds;
   bool m_horizontal;
   AtomicString m_emphasisMark;
   int m_emphasisMarkOffset;
   LayoutTextCombine* m_combinedText;
+  int m_ellipsisOffset;
 };
 
 inline AffineTransform TextPainter::rotation(
     const LayoutRect& boxRect,
     RotationDirection rotationDirection) {
   // Why this matrix is correct: consider the case of a clockwise rotation.
 
   // Let the corner points that define |boxRect| be ABCD, where A is top-left
   // and B is bottom-left.
 
@@ skipping 10 matching lines @@
   return rotationDirection == Clockwise
              ? AffineTransform(0, 1, -1, 0, boxRect.x() + boxRect.maxY(),
                                boxRect.y() - boxRect.x())
              : AffineTransform(0, -1, 1, 0, boxRect.x() - boxRect.y(),
                                boxRect.x() + boxRect.maxY());
 }
 
 }  // namespace blink
 
 #endif  // TextPainter_h