Simplify text emphasis painting

Source/platform/fonts/Font.h

Index: Source/platform/fonts/Font.h
diff --git a/Source/platform/fonts/Font.h b/Source/platform/fonts/Font.h
index 73144797476e6e577f82d66849495275a844f78b..cc22b1c3100f52e07a5971f64a38278d1d67efb6 100644
--- a/Source/platform/fonts/Font.h
+++ b/Source/platform/fonts/Font.h
@@ -138,7 +138,7 @@ private:
     enum ForTextEmphasisOrNot { NotForTextEmphasis, ForTextEmphasis };
 
     // Returns the total advance.
-    float buildGlyphBuffer(const TextRunPaintInfo&, GlyphBuffer&, ForTextEmphasisOrNot = NotForTextEmphasis) const;
+    float buildGlyphBuffer(const TextRunPaintInfo&, GlyphBuffer&, const GlyphData* = nullptr) const;

[jbroman, 2015/03/07 18:50:25]

Please include a name for this argument; it's not obvious here that it's for
emphasis.

[f(malita), 2015/03/09 15:04:55]

Done.

     PassTextBlobPtr buildTextBlob(const GlyphBuffer&) const;
     SkPaint textFillPaint(GraphicsContext*, const SimpleFontData*) const;
     SkPaint textStrokePaint(GraphicsContext*, const SimpleFontData*, bool isFilling) const;
@@ -151,7 +151,6 @@ private:
     void drawGlyphs(GraphicsContext*, const SimpleFontData*, const GlyphBuffer&, unsigned from, unsigned numGlyphs, const FloatPoint&, const FloatRect& textRect) const;
     void drawTextBlob(GraphicsContext*, const SkTextBlob*, const SkPoint& origin) const;
     void drawGlyphBuffer(GraphicsContext*, const TextRunPaintInfo&, const GlyphBuffer&, const FloatPoint&) const;
-    void drawEmphasisMarks(GraphicsContext*, const TextRunPaintInfo&, const GlyphBuffer&, const AtomicString&, const FloatPoint&) const;
     float floatWidthForSimpleText(const TextRun&, HashSet<const SimpleFontData*>* fallbackFonts = 0, IntRectOutsets* glyphBounds = 0) const;
     int offsetForPositionForSimpleText(const TextRun&, float position, bool includePartialGlyphs) const;
     FloatRect selectionRectForSimpleText(const TextRun&, const FloatPoint&, int h, int from, int to, bool accountForGlyphBounds) const;