Add LayoutLocale class

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 540 matching lines @@
     }
 }
 
 PassRefPtr<ShapeResult> HarfBuzzShaper::shapeResult()
 {
     RefPtr<ShapeResult> result = ShapeResult::create(m_font,
         m_normalizedBufferLength, m_textRun.direction());
     HarfBuzzScopedPtr<hb_buffer_t> harfBuzzBuffer(hb_buffer_create(), hb_buffer_destroy);
 
     const FontDescription& fontDescription = m_font->getFontDescription();
-    const String& localeString = fontDescription.locale();
-    CString locale = localeString.latin1();
-    const hb_language_t language = hb_language_from_string(locale.data(), locale.length());
+    const hb_language_t language = fontDescription.localeOrDefault().harfbuzzLanguage();
 
     bool needsCapsHandling = fontDescription.variantCaps() != FontDescription::CapsNormal;
     OpenTypeCapsSupport capsSupport;
 
     RunSegmenter::RunSegmenterRange segmentRange = {
         0,
         0,
         USCRIPT_INVALID_CODE,
         OrientationIterator::OrientationInvalid,
         FontFallbackPriority::Invalid };
@@ skipping 68 matching lines @@
                 m_font->getFontDescription().orientation(),
                 segmentRange.renderOrientation);
 
             CaseMapIntend caseMapIntend = CaseMapIntend::KeepSameCase;
             if (needsCapsHandling) {
                 caseMapIntend = capsSupport.needsCaseChange(smallCapsBehavior);
             }
 
             CaseMappingHarfBuzzBufferFiller(
                 caseMapIntend,
-                fontDescription.locale(),
+                fontDescription.localeOrDefault(),
                 harfBuzzBuffer.get(),
                 m_normalizedBuffer.get(),
                 m_normalizedBufferLength,
                 currentQueueItem.m_startIndex,
                 currentQueueItem.m_numCharacters);
 
             CapsFeatureSettingsScopedOverlay capsOverlay(m_features, capsSupport.fontFeatureToUse(smallCapsBehavior));
 
             if (!shapeRange(harfBuzzBuffer.get(),
                 currentQueueItem.m_startIndex,
@@ skipping 41 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(std::move(run));
     return result.release();
 }
 
 
 } // namespace blink