Replace ENABLE_OPENTYPE_VERTICAL implementation with HarfBuzz

Source/platform/fonts/harfbuzz/HarfBuzzFaceCoreText.mm

Index: Source/platform/fonts/harfbuzz/HarfBuzzFaceCoreText.mm
diff --git a/Source/platform/fonts/harfbuzz/HarfBuzzFaceCoreText.mm b/Source/platform/fonts/harfbuzz/HarfBuzzFaceCoreText.mm
index 84687955f01a7ae145d05a627f0edb316210e27a..7d212341f3ac2f866249b7830599bd0eb728c21c 100644
--- a/Source/platform/fonts/harfbuzz/HarfBuzzFaceCoreText.mm
+++ b/Source/platform/fonts/harfbuzz/HarfBuzzFaceCoreText.mm
@@ -105,6 +105,43 @@ static hb_position_t getGlyphHorizontalAdvance(hb_font_t* hbFont, void* fontData
     return floatToHarfBuzzPosition(advance.width + syntheticBoldOffset);
 }
 
+static hb_bool_t harfBuzzGetGlyphVerticalOrigin(hb_font_t* hbFont, void* fontData, hb_codepoint_t glyph, hb_position_t* x, hb_position_t* y, void* userData)
+{
+    FontPlatformData* fontPlatformData = reinterpret_cast<FontPlatformData*>(fontData);
+
+    OpenTypeVerticalData* verticalData = fontPlatformData->verticalData().get();
+    if (!verticalData)
+        return false;
+
+    // FIXME: This should be using the existing SimpleFontData or SkFontMetrics.
+    RefPtr<SimpleFontData> simpleFontData = SimpleFontData::create(*fontPlatformData);
+    float result[] = { 0, 0 };
+
+    Glyph theGlyph = glyph;
+    verticalData->getVerticalTranslationsForGlyphs(simpleFontData.get(), &theGlyph, 1, result);
+    *x = floatToHarfBuzzPosition(-result[0]);
+    *y = floatToHarfBuzzPosition(-result[1]);
+
+    return true;
+}
+
+static hb_position_t harfBuzzGetGlyphVerticalAdvance(hb_font_t* hbFont, void* fontData, hb_codepoint_t glyph, void* userData)
+{
+    FontPlatformData* fontPlatformData = reinterpret_cast<FontPlatformData*>(fontData);
+
+    RefPtr<SimpleFontData> simpleFontData = SimpleFontData::create(*fontPlatformData);
+    OpenTypeVerticalData* verticalData = fontPlatformData->verticalData().get();
+
+    if (!verticalData)
+      return floatToHarfBuzzPosition(simpleFontData->fontMetrics().height());
+
+    // FIXME: This should be using the existing SimpleFontData or SkFontMetrics.
+    Glyph theGlyph = glyph;
+    float advanceHeight = verticalData->advanceHeight(simpleFontData.get(), theGlyph);
+
+    return floatToHarfBuzzPosition(advanceHeight);
+}
+
 static hb_bool_t getGlyphHorizontalOrigin(hb_font_t* hbFont, void* fontData, hb_codepoint_t glyph, hb_position_t* x, hb_position_t* y, void* userData)
 {
     return true;
@@ -133,6 +170,8 @@ static hb_font_funcs_t* harfBuzzCoreTextGetFontFuncs()
         hb_font_funcs_set_glyph_func(harfBuzzCoreTextFontFuncs, getGlyph, 0, 0);
         hb_font_funcs_set_glyph_h_advance_func(harfBuzzCoreTextFontFuncs, getGlyphHorizontalAdvance, 0, 0);
         hb_font_funcs_set_glyph_h_origin_func(harfBuzzCoreTextFontFuncs, getGlyphHorizontalOrigin, 0, 0);
+        hb_font_funcs_set_glyph_v_advance_func(harfBuzzCoreTextFontFuncs, harfBuzzGetGlyphVerticalAdvance, 0, 0);
+        hb_font_funcs_set_glyph_v_origin_func(harfBuzzCoreTextFontFuncs, harfBuzzGetGlyphVerticalOrigin, 0, 0);
         hb_font_funcs_set_glyph_extents_func(harfBuzzCoreTextFontFuncs, getGlyphExtents, 0, 0);
         hb_font_funcs_make_immutable(harfBuzzCoreTextFontFuncs);
     }