Introduce typeface cache in blink::FontCache

third_party/WebKit/Source/platform/fonts/shaping/HarfBuzzShaper.cpp

 /*
  * Copyright (c) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 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 295 matching lines @@
     if (!face) {
         DLOG(ERROR) << "Could not create HarfBuzzFace from FontPlatformData.";
         return false;
     }
 
     hb_buffer_set_language(harfBuzzBuffer, language);
     hb_buffer_set_script(harfBuzzBuffer, ICUScriptToHBScript(currentRunScript));
     hb_buffer_set_direction(harfBuzzBuffer, TextDirectionToHBDirection(m_textRun.direction(),
         m_font->getFontDescription().orientation(), currentFont));
 
-    HarfBuzzScopedPtr<hb_font_t> harfBuzzFont(face->createFont(currentFontRangeSet), hb_font_destroy);
+    HarfBuzzScopedPtr<hb_font_t> harfBuzzFont(face->createFont(currentFont->size(), currentFont->style(), currentFontRangeSet), hb_font_destroy);
     hb_shape(harfBuzzFont.get(), harfBuzzBuffer, m_features.isEmpty() ? 0 : m_features.data(), m_features.size());
 
     return true;
 }
 
 bool HarfBuzzShaper::extractShapeResults(hb_buffer_t* harfBuzzBuffer,
     ShapeResult* shapeResult,
     bool& fontCycleQueued, const HolesQueueItem& currentQueueItem,
     const SimpleFontData* currentFont,
     UScriptCode currentRunScript,
@@ skipping 353 matching lines @@
     result->m_width = run->m_width;
     result->m_numGlyphs = count;
     ASSERT(result->m_numGlyphs == count); // no overflow
     result->m_hasVerticalOffsets = fontData->platformData().isVerticalAnyUpright();
     result->m_runs.append(run.release());
     return result.release();
 }
 
 
 } // namespace blink