Introduce typeface cache in blink::FontCache

third_party/WebKit/Source/platform/blink_platform.gypi

 {
   'includes': [
     'platform_generated.gypi',
   ],
   'variables': {
     'platform_files': [
       'AsyncFileSystemCallbacks.h',
       'CalculationValue.h',
       'CheckedInt.h',
       'ContentDecryptionModuleResult.h',
@@ skipping 401 matching lines @@
       'fonts/FontFallbackList.cpp',
       'fonts/FontFallbackList.h',
       'fonts/FontFallbackPriority.h',
       'fonts/FontFallbackPriority.cpp',
       'fonts/FontFamily.cpp',
       'fonts/FontFamily.h',
       'fonts/FontFeatureSettings.cpp',
       'fonts/FontFeatureSettings.h',
       'fonts/FontPlatformData.cpp',
       'fonts/FontPlatformData.h',
+      'fonts/FontRenderStyle.cpp',
       'fonts/FontRenderStyle.h',
       'fonts/GenericFontFamilySettings.cpp',
       'fonts/GenericFontFamilySettings.h',
       'fonts/GlyphBuffer.h',
       'fonts/GlyphMetricsMap.h',
       'fonts/GlyphPage.h',
       'fonts/GlyphPageTreeNode.cpp',
       'fonts/GlyphPageTreeNode.h',
       'fonts/Latin1TextIterator.h',
       'fonts/OrientationIterator.h',
@@ skipping 886 matching lines @@
       ['OS!="mac"',
         {
           'platform_test_files': [
             'scroll/ScrollAnimatorTest.cpp',
           ],
         }
       ],
     ],
   },
 }