Explicitly cast from HarfBuzz type to shorter type

Source/platform/fonts/harfbuzz/HarfBuzzFaceSkia.cpp

 /*
  * Copyright (c) 2012 Google Inc. All rights reserved.
  * Copyright (c) 2014 BlackBerry Limited. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 110 matching lines @@
 static hb_position_t harfBuzzGetGlyphHorizontalKerning(hb_font_t*, void* fontData, hb_codepoint_t leftGlyph, hb_codepoint_t rightGlyph, void*)
 {
     HarfBuzzFontData* hbFontData = reinterpret_cast<HarfBuzzFontData*>(fontData);
     if (hbFontData->m_paint.isVerticalText()) {
         // We don't support cross-stream kerning
         return 0;
     }
 
     SkTypeface* typeface = hbFontData->m_paint.getTypeface();
 
-    const uint16_t glyphs[2] = { leftGlyph, rightGlyph };
+    const uint16_t glyphs[2] = { static_cast<uint16_t>(leftGlyph), static_cast<uint16_t>(rightGlyph) };
     int32_t kerningAdjustments[1] = { 0 };
 
     if (typeface->getKerningPairAdjustments(glyphs, 2, kerningAdjustments)) {
         SkScalar upm = SkIntToScalar(typeface->getUnitsPerEm());
         SkScalar size = hbFontData->m_paint.getTextSize();
         return SkiaScalarToHarfBuzzPosition(SkScalarMulDiv(SkIntToScalar(kerningAdjustments[0]), size, upm));
     }
 
     return 0;
 }
 
 static hb_position_t harfBuzzGetGlyphVerticalKerning(hb_font_t*, void* fontData, hb_codepoint_t topGlyph, hb_codepoint_t bottomGlyph, void*)
 {
     HarfBuzzFontData* hbFontData = reinterpret_cast<HarfBuzzFontData*>(fontData);
     if (!hbFontData->m_paint.isVerticalText()) {
         // We don't support cross-stream kerning
         return 0;
     }
 
     SkTypeface* typeface = hbFontData->m_paint.getTypeface();
 
-    const uint16_t glyphs[2] = { topGlyph, bottomGlyph };
+    const uint16_t glyphs[2] = { static_cast<uint16_t>(topGlyph), static_cast<uint16_t>(bottomGlyph) };
     int32_t kerningAdjustments[1] = { 0 };
 
     if (typeface->getKerningPairAdjustments(glyphs, 2, kerningAdjustments)) {
         SkScalar upm = SkIntToScalar(typeface->getUnitsPerEm());
         SkScalar size = hbFontData->m_paint.getTextSize();
         return SkiaScalarToHarfBuzzPosition(SkScalarMulDiv(SkIntToScalar(kerningAdjustments[0]), size, upm));
     }
 
     return 0;
 }
@@ skipping 70 matching lines @@
     hb_font_make_immutable(font);
     return font;
 }
 
 GlyphBufferAdvance HarfBuzzShaper::createGlyphBufferAdvance(float width, float height)
 {
     return GlyphBufferAdvance(width, height);
 }
 
 } // namespace WebCore