Add "Dotum" to the noSubpixelForSmallSizeFont black list

Source/platform/fonts/win/FontCacheSkiaWin.cpp

 /*
  * Copyright (C) 2006, 2007 Apple Computer, Inc.
  * Copyright (c) 2006, 2007, 2008, 2009, 2012 Google Inc. 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 385 matching lines @@
     }
 
     // List of fonts that look bad with subpixel text rendering at smaller font
     // sizes. This includes all fonts in the Microsoft Core fonts for the Web
     // collection.
     const static wchar_t* noSubpixelForSmallSizeFont[] = {
         L"andale mono",
         L"arial",
         L"comic sans",
         L"courier new",
+        L"dotum",

[eae, 2015/08/31 17:39:01]

You might want to remove it from the minAntiAliasSizeForFont list above.

         L"georgia",
         L"impact",
         L"lucida console",
         L"tahoma",
         L"times new roman",
         L"trebuchet ms",
         L"verdana",
         L"webdings"
     };
     const static float minSizeForSubpixelForFont = 16.0f;
     numFonts = WTF_ARRAY_LENGTH(noSubpixelForSmallSizeFont);
     for (size_t i = 0; i < numFonts; i++) {
         const wchar_t* family = noSubpixelForSmallSizeFont[i];
         if (typefacesMatchesFamily(tf.get(), family)) {
             result->setMinSizeForSubpixel(minSizeForSubpixelForFont);
             break;
         }
     }
 
     return result;
 }
 
 } // namespace blink