Do not skip ink for ideographic scripts

third_party/WebKit/Source/platform/fonts/GlyphBuffer.h

Index: third_party/WebKit/Source/platform/fonts/GlyphBuffer.h
diff --git a/third_party/WebKit/Source/platform/fonts/GlyphBuffer.h b/third_party/WebKit/Source/platform/fonts/GlyphBuffer.h
index f05a0d5ad37ac87f4aa576a7161b1a416c8aaee5..b52bd1d58ed49b4a0fe3bbc814ad2fbcb0bdf8bc 100644
--- a/third_party/WebKit/Source/platform/fonts/GlyphBuffer.h
+++ b/third_party/WebKit/Source/platform/fonts/GlyphBuffer.h
@@ -92,16 +92,24 @@ class GlyphBuffer {
     return m_offsets[index * 2 + 1];
   }
 
-  void add(Glyph glyph, const SimpleFontData* font, float x) {
+  void add(Glyph glyph,
+           const SimpleFontData* font,
+           float x,
+           unsigned characterIndex = 0) {
     // cannot mix x-only/xy offsets
     ASSERT(!hasVerticalOffsets());
 
     m_fontData.append(font);
     m_glyphs.append(glyph);
     m_offsets.append(x);
+    if (m_characterIndexes)
+      m_characterIndexes->append(characterIndex);
   }
 
-  void add(Glyph glyph, const SimpleFontData* font, const FloatPoint& offset) {
+  void add(Glyph glyph,
+           const SimpleFontData* font,
+           const FloatPoint& offset,
+           unsigned characterIndex = 0) {
     // cannot mix x-only/xy offsets
     ASSERT(isEmpty() || hasVerticalOffsets());
 
@@ -109,6 +117,8 @@ class GlyphBuffer {
     m_glyphs.append(glyph);
     m_offsets.append(offset.x());
     m_offsets.append(offset.y());
+    if (m_characterIndexes)
+      m_characterIndexes->append(characterIndex);
   }
 
   void reverseForSimpleRTL(float afterOffset, float totalWidth) {
@@ -141,6 +151,15 @@ class GlyphBuffer {
     m_offsets.reverse();
   }
 
+  void saveCharacterIndexes() {
+    m_characterIndexes.reset(new Vector<unsigned, 2048>());
+  }
+
+  unsigned characterIndex(unsigned index) const {
+    DCHECK(m_characterIndexes);
+    return (*m_characterIndexes)[index];
+  }
+
  protected:
   Vector<const SimpleFontData*, 2048> m_fontData;
   Vector<Glyph, 2048> m_glyphs;
@@ -149,6 +168,8 @@ class GlyphBuffer {
   // (depending on the buffer-wide positioning mode). This matches the
   // glyph positioning format used by Skia.
   Vector<float, 2048> m_offsets;
+
+  std::unique_ptr<Vector<unsigned, 2048>> m_characterIndexes;
 };
 
 }  // namespace blink