Block domain labels made of Cyrillic letters that look alike Latin

components/url_formatter/url_formatter_unittest.cc

Index: components/url_formatter/url_formatter_unittest.cc
diff --git a/components/url_formatter/url_formatter_unittest.cc b/components/url_formatter/url_formatter_unittest.cc
index c0fe9509a6d4ac21a85ed744678e9468412c3155..8c5759da6b3e19d2ff0305d6aad5f6c9a2212fba 100644
--- a/components/url_formatter/url_formatter_unittest.cc
+++ b/components/url_formatter/url_formatter_unittest.cc
@@ -209,6 +209,14 @@ const IDNTestCase idn_cases[] = {
   // U+30FB + Latin
   {"xn--abc-os4b.jp", L"\x30fb" L"abc.jp", false},
 
+  // 'scope' written in Cyrillic in '.com' (non-IDN TLD)
+  {"xn--e1argc3h.com", L"\x0455\x0441\x043e\x0440\x0435.com", false},
+  // 'scope' in Cyrillic, but in Cyrillic TLD.
+  {"xn--e1argc3h.xn--p1ai", L"\x0455\x0441\x043e\x0440\x0435.\x0440\x0444",
+    true},
+  // 'museum' in Russian has characters that are not a Latin-look-alike.
+  {"xn--e1adhj9a.com", L"\x043c\x0443\x0437\x0435\x0439.com", true},
+
   // Mixed digits: the first two will also fail mixed script test
   // Latin + ASCII digit + Deva digit
   {"xn--asc1deva-j0q.co.in", L"asc1deva\x0967.co.in", false},