Change CachingWordShapeIterator to delimit CJK characters

third_party/WebKit/Source/platform/fonts/Character.h

 /*
  * Copyright (C) 2014 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.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 106 matching lines @@
         // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#text-preparation-algorithm
         // The space characters according to specification are : U+0020, U+0009, U+000A, U+000C, and U+000D.
         // http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#space-character
         // This function returns true for 0x000B also, so that this is backward compatible.
         // Otherwise, the test LayoutTests/canvas/philip/tests/2d.text.draw.space.collapse.space.html will fail
         return c == 0x0009 || (c >= 0x000A && c <= 0x000D);
     }
 
     static String normalizeSpaces(const LChar*, unsigned length);
     static String normalizeSpaces(const UChar*, unsigned length);
+
+    static bool isCommonOrInheritedScript(UChar32);
 };
 
 } // namespace blink
 
 #endif