Remove a small range of Tibetan characters from the allowed IDN set on Mac.

components/url_formatter/url_formatter_unittest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/url_formatter/url_formatter.h"
 
 #include <stddef.h>
 #include <string.h>
 
 #include <vector>
@@ skipping 337 matching lines @@
   // Combining Long Solidus Overlay
   {"google.xn--comabc-k8d", L"google.com\x0338" L"abc", false},
   // Hyphenation Point instead of Katakana Middle dot
   {"xn--svgy16dha.jp", L"\x30a1\x2027\x30a3.jp", false},
   // Gershayim with other Hebrew characters is allowed.
   {"xn--5db6bh9b.il", L"\x05e9\x05d1\x05f4\x05e6.il", true},
   // Hebrew Gershayim with Latin is disallowed.
   {"xn--ab-yod.com", L"a\x05f4" L"b.com", false},
   // Hebrew Gershayim with Arabic is disallowed.
   {"xn--5eb7h.eg", L"\x0628\x05f4.eg", false},
+#if defined(OS_MACOSX)
+  // Tibetan transliteration characters are disallowed on Mac.
+  {"xn--com-luma.test.pl", L"\u0f8c.test.pl", false},
+#endif
 
   // Hyphens (http://unicode.org/cldr/utility/confusables.jsp?a=-)
   // Hyphen-Minus (the only hyphen allowed)
   // abc-def
   {"abc-def.com", L"abc-def.com", true},
   // Modifier Letter Minus Sign
   {"xn--abcdef-5od.com", L"abc\x02d7" L"def.com", false},
   // Hyphen
   {"xn--abcdef-dg0c.com", L"abc\x2010" L"def.com", false},
   // Non-Breaking Hyphen
@@ skipping 619 matching lines @@
     0, kNpos, kNpos, kNpos, kNpos, kNpos, kNpos, 0, kNpos, kNpos, kNpos, kNpos,
     0, 1, 2, 3, 4, 5, 6, 7
   };
   CheckAdjustedOffsets("http://user@foo.com/", kFormatUrlOmitAll,
                        net::UnescapeRule::NORMAL, omit_all_offsets);
 }
 
 }  // namespace
 
 }  // namespace url_formatter