Downloading a file with ".tar.bz" extension mulitple times resulted in incorrect filename where ordinal number was suffixed to "tar" instead of filename as below.

Actual - file.tar(1).bz

Expected - file(1).tar.bz

This happened because "bz" was not recognized as double extension.

BUG=116972

Review URL: https://codereview.chromium.org/630323003

Cr-Commit-Position: refs/heads/master@{#298789}


CrOS-Libchrome-Original-Commit: fad66c3012d0c95b447f5bc46da7602f57188dfe
diff --git a/base/files/file_path_unittest.cc b/base/files/file_path_unittest.cc
index 906d8df..956faea 100644
--- a/base/files/file_path_unittest.cc
+++ b/base/files/file_path_unittest.cc
@@ -765,6 +765,7 @@
     { FPL("/foo.tar.gz.gz"),         FPL(".gz.gz") },
     { FPL("/foo.1234.user.js"),      FPL(".user.js") },
     { FPL("foo.user.js"),            FPL(".user.js") },
+    { FPL("/foo.tar.bz"),            FPL(".tar.bz") },
   };
   for (unsigned int i = 0; i < arraysize(cases); ++i) {
     FilePath path(cases[i].input);