Revert 262487 "Add net/base/filename_util.h."

trunk/src/net/base/net_util_unittest.cc

Index: trunk/src/net/base/net_util_unittest.cc
===================================================================
--- trunk/src/net/base/net_util_unittest.cc	(revision 262497)
+++ trunk/src/net/base/net_util_unittest.cc	(working copy)
@@ -17,6 +17,7 @@
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/sys_byteorder.h"
+#include "base/test/test_file_util.h"
 #include "base/time/time.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
@@ -38,6 +39,11 @@
 
 static const size_t kNpos = base::string16::npos;
 
+struct FileCase {
+  const wchar_t* file;
+  const char* url;
+};
+
 struct HeaderCase {
   const char* header_name;
   const char* expected;
@@ -49,6 +55,12 @@
   const char* expected;
 };
 
+struct FileNameCDCase {
+  const char* header_field;
+  const char* referrer_charset;
+  const wchar_t* expected;
+};
+
 const char* kLanguages[] = {
   "",      "en",    "zh-CN",    "ja",    "ko",
   "he",    "ar",    "ru",       "el",    "fr",
@@ -384,6 +396,17 @@
   bool expected_output;
 };
 
+struct GenerateFilenameCase {
+  int lineno;
+  const char* url;
+  const char* content_disp_header;
+  const char* referrer_charset;
+  const char* suggested_filename;
+  const char* mime_type;
+  const wchar_t* default_filename;
+  const wchar_t* expected_filename;
+};
+
 struct UrlTestData {
   const char* description;
   const char* input;
@@ -472,8 +495,125 @@
   return out;
 }
 
+void RunGenerateFileNameTestCase(const GenerateFilenameCase* test_case) {
+  std::string default_filename(base::WideToUTF8(test_case->default_filename));
+  base::FilePath file_path = GenerateFileName(
+      GURL(test_case->url), test_case->content_disp_header,
+      test_case->referrer_charset, test_case->suggested_filename,
+      test_case->mime_type, default_filename);
+  EXPECT_EQ(test_case->expected_filename,
+            file_util::FilePathAsWString(file_path))
+      << "test case at line number: " << test_case->lineno;
+}
+
 }  // anonymous namespace
 
+TEST(NetUtilTest, FileURLConversion) {
+  // a list of test file names and the corresponding URLs
+  const FileCase round_trip_cases[] = {
+#if defined(OS_WIN)
+    {L"C:\\foo\\bar.txt", "file:///C:/foo/bar.txt"},
+    {L"\\\\some computer\\foo\\bar.txt",
+     "file://some%20computer/foo/bar.txt"}, // UNC
+    {L"D:\\Name;with%some symbols*#",
+     "file:///D:/Name%3Bwith%25some%20symbols*%23"},
+    // issue 14153: To be tested with the OS default codepage other than 1252.
+    {L"D:\\latin1\\caf\x00E9\x00DD.txt",
+     "file:///D:/latin1/caf%C3%A9%C3%9D.txt"},
+    {L"D:\\otherlatin\\caf\x0119.txt",
+     "file:///D:/otherlatin/caf%C4%99.txt"},
+    {L"D:\\greek\\\x03B1\x03B2\x03B3.txt",
+     "file:///D:/greek/%CE%B1%CE%B2%CE%B3.txt"},
+    {L"D:\\Chinese\\\x6240\x6709\x4e2d\x6587\x7f51\x9875.doc",
+     "file:///D:/Chinese/%E6%89%80%E6%9C%89%E4%B8%AD%E6%96%87%E7%BD%91"
+         "%E9%A1%B5.doc"},
+    {L"D:\\plane1\\\xD835\xDC00\xD835\xDC01.txt",  // Math alphabet "AB"
+     "file:///D:/plane1/%F0%9D%90%80%F0%9D%90%81.txt"},
+#elif defined(OS_POSIX)
+    {L"/foo/bar.txt", "file:///foo/bar.txt"},
+    {L"/foo/BAR.txt", "file:///foo/BAR.txt"},
+    {L"/C:/foo/bar.txt", "file:///C:/foo/bar.txt"},
+    {L"/foo/bar?.txt", "file:///foo/bar%3F.txt"},
+    {L"/some computer/foo/bar.txt", "file:///some%20computer/foo/bar.txt"},
+    {L"/Name;with%some symbols*#", "file:///Name%3Bwith%25some%20symbols*%23"},
+    {L"/latin1/caf\x00E9\x00DD.txt", "file:///latin1/caf%C3%A9%C3%9D.txt"},
+    {L"/otherlatin/caf\x0119.txt", "file:///otherlatin/caf%C4%99.txt"},
+    {L"/greek/\x03B1\x03B2\x03B3.txt", "file:///greek/%CE%B1%CE%B2%CE%B3.txt"},
+    {L"/Chinese/\x6240\x6709\x4e2d\x6587\x7f51\x9875.doc",
+     "file:///Chinese/%E6%89%80%E6%9C%89%E4%B8%AD%E6%96%87%E7%BD"
+         "%91%E9%A1%B5.doc"},
+    {L"/plane1/\x1D400\x1D401.txt",  // Math alphabet "AB"
+     "file:///plane1/%F0%9D%90%80%F0%9D%90%81.txt"},
+#endif
+  };
+
+  // First, we'll test that we can round-trip all of the above cases of URLs
+  base::FilePath output;
+  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(round_trip_cases); i++) {
+    // convert to the file URL
+    GURL file_url(FilePathToFileURL(
+                      file_util::WStringAsFilePath(round_trip_cases[i].file)));
+    EXPECT_EQ(round_trip_cases[i].url, file_url.spec());
+
+    // Back to the filename.
+    EXPECT_TRUE(FileURLToFilePath(file_url, &output));
+    EXPECT_EQ(round_trip_cases[i].file, file_util::FilePathAsWString(output));
+  }
+
+  // Test that various file: URLs get decoded into the correct file type
+  FileCase url_cases[] = {
+#if defined(OS_WIN)
+    {L"C:\\foo\\bar.txt", "file:c|/foo\\bar.txt"},
+    {L"C:\\foo\\bar.txt", "file:/c:/foo/bar.txt"},
+    {L"\\\\foo\\bar.txt", "file://foo\\bar.txt"},
+    {L"C:\\foo\\bar.txt", "file:///c:/foo/bar.txt"},
+    {L"\\\\foo\\bar.txt", "file:////foo\\bar.txt"},
+    {L"\\\\foo\\bar.txt", "file:/foo/bar.txt"},
+    {L"\\\\foo\\bar.txt", "file://foo\\bar.txt"},
+    {L"C:\\foo\\bar.txt", "file:\\\\\\c:/foo/bar.txt"},
+#elif defined(OS_POSIX)
+    {L"/c:/foo/bar.txt", "file:/c:/foo/bar.txt"},
+    {L"/c:/foo/bar.txt", "file:///c:/foo/bar.txt"},
+    {L"/foo/bar.txt", "file:/foo/bar.txt"},
+    {L"/c:/foo/bar.txt", "file:\\\\\\c:/foo/bar.txt"},
+    {L"/foo/bar.txt", "file:foo/bar.txt"},
+    {L"/bar.txt", "file://foo/bar.txt"},
+    {L"/foo/bar.txt", "file:///foo/bar.txt"},
+    {L"/foo/bar.txt", "file:////foo/bar.txt"},
+    {L"/foo/bar.txt", "file:////foo//bar.txt"},
+    {L"/foo/bar.txt", "file:////foo///bar.txt"},
+    {L"/foo/bar.txt", "file:////foo////bar.txt"},
+    {L"/c:/foo/bar.txt", "file:\\\\\\c:/foo/bar.txt"},
+    {L"/c:/foo/bar.txt", "file:c:/foo/bar.txt"},
+    // We get these wrong because GURL turns back slashes into forward
+    // slashes.
+    //{L"/foo%5Cbar.txt", "file://foo\\bar.txt"},
+    //{L"/c|/foo%5Cbar.txt", "file:c|/foo\\bar.txt"},
+    //{L"/foo%5Cbar.txt", "file://foo\\bar.txt"},
+    //{L"/foo%5Cbar.txt", "file:////foo\\bar.txt"},
+    //{L"/foo%5Cbar.txt", "file://foo\\bar.txt"},
+#endif
+  };
+  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(url_cases); i++) {
+    FileURLToFilePath(GURL(url_cases[i].url), &output);
+    EXPECT_EQ(url_cases[i].file, file_util::FilePathAsWString(output));
+  }
+
+  // Unfortunately, UTF8ToWide discards invalid UTF8 input.
+#ifdef BUG_878908_IS_FIXED
+  // Test that no conversion happens if the UTF-8 input is invalid, and that
+  // the input is preserved in UTF-8
+  const char invalid_utf8[] = "file:///d:/Blah/\xff.doc";
+  const wchar_t invalid_wide[] = L"D:\\Blah\\\xff.doc";
+  EXPECT_TRUE(FileURLToFilePath(
+      GURL(std::string(invalid_utf8)), &output));
+  EXPECT_EQ(std::wstring(invalid_wide), output);
+#endif
+
+  // Test that if a file URL is malformed, we get a failure
+  EXPECT_FALSE(FileURLToFilePath(GURL("filefoobar"), &output));
+}
+
 TEST(NetUtilTest, GetIdentityFromURL) {
   struct {
     const char* input_url;
@@ -664,6 +804,1422 @@
   EXPECT_EQ(ASCIIToUTF16("blah"), StripWWW(ASCIIToUTF16("blah")));
 }
 
+#if defined(OS_WIN)
+#define JPEG_EXT L".jpg"
+#define HTML_EXT L".htm"
+#elif defined(OS_MACOSX)
+#define JPEG_EXT L".jpeg"
+#define HTML_EXT L".html"
+#else
+#define JPEG_EXT L".jpg"
+#define HTML_EXT L".html"
+#endif
+#define TXT_EXT L".txt"
+#define TAR_EXT L".tar"
+
+TEST(NetUtilTest, GenerateSafeFileName) {
+  const struct {
+    const char* mime_type;
+    const base::FilePath::CharType* filename;
+    const base::FilePath::CharType* expected_filename;
+  } safe_tests[] = {
+#if defined(OS_WIN)
+    {
+      "text/html",
+      FILE_PATH_LITERAL("C:\\foo\\bar.htm"),
+      FILE_PATH_LITERAL("C:\\foo\\bar.htm")
+    },
+    {
+      "text/html",
+      FILE_PATH_LITERAL("C:\\foo\\bar.html"),
+      FILE_PATH_LITERAL("C:\\foo\\bar.html")
+    },
+    {
+      "text/html",
+      FILE_PATH_LITERAL("C:\\foo\\bar"),
+      FILE_PATH_LITERAL("C:\\foo\\bar.htm")
+    },
+    {
+      "image/png",
+      FILE_PATH_LITERAL("C:\\bar.html"),
+      FILE_PATH_LITERAL("C:\\bar.html")
+    },
+    {
+      "image/png",
+      FILE_PATH_LITERAL("C:\\bar"),
+      FILE_PATH_LITERAL("C:\\bar.png")
+    },
+    {
+      "text/html",
+      FILE_PATH_LITERAL("C:\\foo\\bar.exe"),
+      FILE_PATH_LITERAL("C:\\foo\\bar.exe")
+    },
+    {
+      "image/gif",
+      FILE_PATH_LITERAL("C:\\foo\\bar.exe"),
+      FILE_PATH_LITERAL("C:\\foo\\bar.exe")
+    },
+    {
+      "text/html",
+      FILE_PATH_LITERAL("C:\\foo\\google.com"),
+      FILE_PATH_LITERAL("C:\\foo\\google.com")
+    },
+    {
+      "text/html",
+      FILE_PATH_LITERAL("C:\\foo\\con.htm"),
+      FILE_PATH_LITERAL("C:\\foo\\_con.htm")
+    },
+    {
+      "text/html",
+      FILE_PATH_LITERAL("C:\\foo\\con"),
+      FILE_PATH_LITERAL("C:\\foo\\_con.htm")
+    },
+    {
+      "text/html",
+      FILE_PATH_LITERAL("C:\\foo\\harmless.{not-really-this-may-be-a-guid}"),
+      FILE_PATH_LITERAL("C:\\foo\\harmless.download")
+    },
+    {
+      "text/html",
+      FILE_PATH_LITERAL("C:\\foo\\harmless.local"),
+      FILE_PATH_LITERAL("C:\\foo\\harmless.download")
+    },
+    {
+      "text/html",
+      FILE_PATH_LITERAL("C:\\foo\\harmless.lnk"),
+      FILE_PATH_LITERAL("C:\\foo\\harmless.download")
+    },
+    {
+      "text/html",
+      FILE_PATH_LITERAL("C:\\foo\\harmless.{mismatched-"),
+      FILE_PATH_LITERAL("C:\\foo\\harmless.{mismatched-")
+    },
+    // Allow extension synonyms.
+    {
+      "image/jpeg",
+      FILE_PATH_LITERAL("C:\\foo\\bar.jpg"),
+      FILE_PATH_LITERAL("C:\\foo\\bar.jpg")
+    },
+    {
+      "image/jpeg",
+      FILE_PATH_LITERAL("C:\\foo\\bar.jpeg"),
+      FILE_PATH_LITERAL("C:\\foo\\bar.jpeg")
+    },
+#else  // !defined(OS_WIN)
+    {
+      "text/html",
+      FILE_PATH_LITERAL("/foo/bar.htm"),
+      FILE_PATH_LITERAL("/foo/bar.htm")
+    },
+    {
+      "text/html",
+      FILE_PATH_LITERAL("/foo/bar.html"),
+      FILE_PATH_LITERAL("/foo/bar.html")
+    },
+    {
+      "text/html",
+      FILE_PATH_LITERAL("/foo/bar"),
+      FILE_PATH_LITERAL("/foo/bar.html")
+    },
+    {
+      "image/png",
+      FILE_PATH_LITERAL("/bar.html"),
+      FILE_PATH_LITERAL("/bar.html")
+    },
+    {
+      "image/png",
+      FILE_PATH_LITERAL("/bar"),
+      FILE_PATH_LITERAL("/bar.png")
+    },
+    {
+      "image/gif",
+      FILE_PATH_LITERAL("/foo/bar.exe"),
+      FILE_PATH_LITERAL("/foo/bar.exe")
+    },
+    {
+      "text/html",
+      FILE_PATH_LITERAL("/foo/google.com"),
+      FILE_PATH_LITERAL("/foo/google.com")
+    },
+    {
+      "text/html",
+      FILE_PATH_LITERAL("/foo/con.htm"),
+      FILE_PATH_LITERAL("/foo/con.htm")
+    },
+    {
+      "text/html",
+      FILE_PATH_LITERAL("/foo/con"),
+      FILE_PATH_LITERAL("/foo/con.html")
+    },
+    // Allow extension synonyms.
+    {
+      "image/jpeg",
+      FILE_PATH_LITERAL("/bar.jpg"),
+      FILE_PATH_LITERAL("/bar.jpg")
+    },
+    {
+      "image/jpeg",
+      FILE_PATH_LITERAL("/bar.jpeg"),
+      FILE_PATH_LITERAL("/bar.jpeg")
+    },
+#endif  // !defined(OS_WIN)
+  };
+
+  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(safe_tests); ++i) {
+    base::FilePath file_path(safe_tests[i].filename);
+    GenerateSafeFileName(safe_tests[i].mime_type, false, &file_path);
+    EXPECT_EQ(safe_tests[i].expected_filename, file_path.value())
+        << "Iteration " << i;
+  }
+}
+
+TEST(NetUtilTest, GenerateFileName) {
+#if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
+  // This test doesn't run when the locale is not UTF-8 because some of the
+  // string conversions fail. This is OK (we have the default value) but they
+  // don't match our expectations.
+  std::string locale = setlocale(LC_CTYPE, NULL);
+  StringToLowerASCII(&locale);
+  EXPECT_TRUE(locale.find("utf-8") != std::string::npos ||
+              locale.find("utf8") != std::string::npos)
+      << "Your locale (" << locale << ") must be set to UTF-8 "
+      << "for this test to pass!";
+#endif
+
+  // Tests whether the correct filename is selected from the the given
+  // parameters and that Content-Disposition headers are properly
+  // handled including failovers when the header is malformed.
+  const GenerateFilenameCase selection_tests[] = {
+    {
+      __LINE__,
+      "http://www.google.com/",
+      "attachment; filename=test.html",
+      "",
+      "",
+      "",
+      L"",
+      L"test.html"
+    },
+    {
+      __LINE__,
+      "http://www.google.com/",
+      "attachment; filename=\"test.html\"",
+      "",
+      "",
+      "",
+      L"",
+      L"test.html"
+    },
+    {
+      __LINE__,
+      "http://www.google.com/",
+      "attachment; filename= \"test.html\"",
+      "",
+      "",
+      "",
+      L"",
+      L"test.html"
+    },
+    {
+      __LINE__,
+      "http://www.google.com/",
+      "attachment; filename   =   \"test.html\"",
+      "",
+      "",
+      "",
+      L"",
+      L"test.html"
+    },
+    { // filename is whitespace.  Should failover to URL host
+      __LINE__,
+      "http://www.google.com/",
+      "attachment; filename=  ",
+      "",
+      "",
+      "",
+      L"",
+      L"www.google.com"
+    },
+    { // No filename.
+      __LINE__,
+      "http://www.google.com/path/test.html",
+      "attachment",
+      "",
+      "",
+      "",
+      L"",
+      L"test.html"
+    },
+    { // Ditto
+      __LINE__,
+      "http://www.google.com/path/test.html",
+      "attachment;",
+      "",
+      "",
+      "",
+      L"",
+      L"test.html"
+    },
+    { // No C-D
+      __LINE__,
+      "http://www.google.com/",
+      "",
+      "",
+      "",
+      "",
+      L"",
+      L"www.google.com"
+    },
+    {
+      __LINE__,
+      "http://www.google.com/test.html",
+      "",
+      "",
+      "",
+      "",
+      L"",
+      L"test.html"
+    },
+    { // Now that we use src/url's ExtractFileName, this case falls back to
+      // the hostname. If this behavior is not desirable, we'd better change
+      // ExtractFileName (in url_parse).
+      __LINE__,
+      "http://www.google.com/path/",
+      "",
+      "",
+      "",
+      "",
+      L"",
+      L"www.google.com"
+    },
+    {
+      __LINE__,
+      "http://www.google.com/path",
+      "",
+      "",
+      "",
+      "",
+      L"",
+      L"path"
+    },
+    {
+      __LINE__,
+      "file:///",
+      "",
+      "",
+      "",
+      "",
+      L"",
+      L"download"
+    },
+    {
+      __LINE__,
+      "file:///path/testfile",
+      "",
+      "",
+      "",
+      "",
+      L"",
+      L"testfile"
+    },
+    {
+      __LINE__,
+      "non-standard-scheme:",
+      "",
+      "",
+      "",
+      "",
+      L"",
+      L"download"
+    },
+    { // C-D should override default
+      __LINE__,
+      "http://www.google.com/",
+      "attachment; filename =\"test.html\"",
+      "",
+      "",
+      "",
+      L"download",
+      L"test.html"
+    },
+    { // But the URL shouldn't
+      __LINE__,
+      "http://www.google.com/",
+      "",
+      "",
+      "",
+      "",
+      L"download",
+      L"download"
+    },
+    {
+      __LINE__,
+      "http://www.google.com/",
+      "attachment; filename=\"../test.html\"",
+      "",
+      "",
+      "",
+      L"",
+      L"-test.html"
+    },
+    {
+      __LINE__,
+      "http://www.google.com/",
+      "attachment; filename=\"..\\test.html\"",
+      "",
+      "",
+      "",
+      L"",
+      L"test.html"
+    },
+    {
+      __LINE__,
+      "http://www.google.com/",
+      "attachment; filename=\"..\\\\test.html\"",
+      "",
+      "",
+      "",
+      L"",
+      L"-test.html"
+    },
+    { // Filename disappears after leading and trailing periods are removed.
+      __LINE__,
+      "http://www.google.com/",
+      "attachment; filename=\"..\"",
+      "",
+      "",
+      "",
+      L"default",
+      L"default"
+    },
+    { // C-D specified filename disappears.  Failover to final filename.
+      __LINE__,
+      "http://www.google.com/test.html",
+      "attachment; filename=\"..\"",
+      "",
+      "",
+      "",
+      L"default",
+      L"default"
+    },
+    // Below is a small subset of cases taken from HttpContentDisposition tests.
+    {
+      __LINE__,
+      "http://www.google.com/",
+      "attachment; filename=\"%EC%98%88%EC%88%A0%20"
+      "%EC%98%88%EC%88%A0.jpg\"",
+      "",
+      "",
+      "",
+      L"",
+      L"\uc608\uc220 \uc608\uc220.jpg"
+    },
+    {
+      __LINE__,
+      "http://www.google.com/%EC%98%88%EC%88%A0%20%EC%98%88%EC%88%A0.jpg",
+      "",
+      "",
+      "",
+      "",
+      L"download",
+      L"\uc608\uc220 \uc608\uc220.jpg"
+    },
+    {
+      __LINE__,
+      "http://www.google.com/",
+      "attachment;",
+      "",
+      "",
+      "",
+      L"\uB2E4\uC6B4\uB85C\uB4DC",
+      L"\uB2E4\uC6B4\uB85C\uB4DC"
+    },
+    {
+      __LINE__,
+      "http://www.google.com/",
+      "attachment; filename=\"=?EUC-JP?Q?=B7=DD=BD="
+      "D13=2Epng?=\"",
+      "",
+      "",
+      "",
+      L"download",
+      L"\u82b8\u88533.png"
+    },
+    {
+      __LINE__,
+      "http://www.example.com/images?id=3",
+      "attachment; filename=caf\xc3\xa9.png",
+      "iso-8859-1",
+      "",
+      "",
+      L"",
+      L"caf\u00e9.png"
+    },
+    {
+      __LINE__,
+      "http://www.example.com/images?id=3",
+      "attachment; filename=caf\xe5.png",
+      "windows-1253",
+      "",
+      "",
+      L"",
+      L"caf\u03b5.png"
+    },
+    {
+      __LINE__,
+      "http://www.example.com/file?id=3",
+      "attachment; name=\xcf\xc2\xd4\xd8.zip",
+      "GBK",
+      "",
+      "",
+      L"",
+      L"\u4e0b\u8f7d.zip"
+    },
+    { // Invalid C-D header. Extracts filename from url.
+      __LINE__,
+      "http://www.google.com/test.html",
+      "attachment; filename==?iiso88591?Q?caf=EG?=",
+      "",
+      "",
+      "",
+      L"",
+      L"test.html"
+    },
+    // about: and data: URLs
+    {
+      __LINE__,
+      "about:chrome",
+      "",
+      "",
+      "",
+      "",
+      L"",
+      L"download"
+    },
+    {
+      __LINE__,
+      "data:,looks/like/a.path",
+      "",
+      "",
+      "",
+      "",
+      L"",
+      L"download"
+    },
+    {
+      __LINE__,
+      "data:text/plain;base64,VG8gYmUgb3Igbm90IHRvIGJlLg=",
+      "",
+      "",
+      "",
+      "",
+      L"",
+      L"download"
+    },
+    {
+      __LINE__,
+      "data:,looks/like/a.path",
+      "",
+      "",
+      "",
+      "",
+      L"default_filename_is_given",
+      L"default_filename_is_given"
+    },
+    {
+      __LINE__,
+      "data:,looks/like/a.path",
+      "",
+      "",
+      "",
+      "",
+      L"\u65e5\u672c\u8a9e",  // Japanese Kanji.
+      L"\u65e5\u672c\u8a9e"
+    },
+    { // The filename encoding is specified by the referrer charset.
+      __LINE__,
+      "http://example.com/V%FDvojov%E1%20psychologie.doc",
+      "",
+      "iso-8859-1",
+      "",
+      "",
+      L"",
+      L"V\u00fdvojov\u00e1 psychologie.doc"
+    },
+    { // Suggested filename takes precedence over URL
+      __LINE__,
+      "http://www.google.com/test",
+      "",
+      "",
+      "suggested",
+      "",
+      L"",
+      L"suggested"
+    },
+    { // The content-disposition has higher precedence over the suggested name.
+      __LINE__,
+      "http://www.google.com/test",
+      "attachment; filename=test.html",
+      "",
+      "suggested",
+      "",
+      L"",
+      L"test.html"
+    },
+#if 0
+    { // The filename encoding doesn't match the referrer charset, the system
+      // charset, or UTF-8.
+      // TODO(jshin): we need to handle this case.
+      __LINE__,
+      "http://example.com/V%FDvojov%E1%20psychologie.doc",
+      "",
+      "utf-8",
+      "",
+      "",
+      L"",
+      L"V\u00fdvojov\u00e1 psychologie.doc",
+    },
+#endif
+    // Raw 8bit characters in C-D
+    {
+      __LINE__,
+      "http://www.example.com/images?id=3",
+      "attachment; filename=caf\xc3\xa9.png",
+      "iso-8859-1",
+      "",
+      "image/png",
+      L"",
+      L"caf\u00e9.png"
+    },
+    {
+      __LINE__,
+      "http://www.example.com/images?id=3",
+      "attachment; filename=caf\xe5.png",
+      "windows-1253",
+      "",
+      "image/png",
+      L"",
+      L"caf\u03b5.png"
+    },
+    { // No 'filename' keyword in the disposition, use the URL
+      __LINE__,
+      "http://www.evil.com/my_download.txt",
+      "a_file_name.txt",
+      "",
+      "",
+      "text/plain",
+      L"download",
+      L"my_download.txt"
+    },
+    { // Spaces in the disposition file name
+      __LINE__,
+      "http://www.frontpagehacker.com/a_download.exe",
+      "filename=My Downloaded File.exe",
+      "",
+      "",
+      "application/octet-stream",
+      L"download",
+      L"My Downloaded File.exe"
+    },
+    { // % encoded
+      __LINE__,
+      "http://www.examples.com/",
+      "attachment; "
+      "filename=\"%EC%98%88%EC%88%A0%20%EC%98%88%EC%88%A0.jpg\"",
+      "",
+      "",
+      "image/jpeg",
+      L"download",
+      L"\uc608\uc220 \uc608\uc220.jpg"
+    },
+    { // name= parameter
+      __LINE__,
+      "http://www.examples.com/q.cgi?id=abc",
+      "attachment; name=abc de.pdf",
+      "",
+      "",
+      "application/octet-stream",
+      L"download",
+      L"abc de.pdf"
+    },
+    {
+      __LINE__,
+      "http://www.example.com/path",
+      "filename=\"=?EUC-JP?Q?=B7=DD=BD=D13=2Epng?=\"",
+      "",
+      "",
+      "image/png",
+      L"download",
+      L"\x82b8\x8853" L"3.png"
+    },
+    { // The following two have invalid CD headers and filenames come from the
+      // URL.
+      __LINE__,
+      "http://www.example.com/test%20123",
+      "attachment; filename==?iiso88591?Q?caf=EG?=",
+      "",
+      "",
+      "image/jpeg",
+      L"download",
+      L"test 123" JPEG_EXT
+    },
+    {
+      __LINE__,
+      "http://www.google.com/%EC%98%88%EC%88%A0%20%EC%98%88%EC%88%A0.jpg",
+      "malformed_disposition",
+      "",
+      "",
+      "image/jpeg",
+      L"download",
+      L"\uc608\uc220 \uc608\uc220.jpg"
+    },
+    { // Invalid C-D. No filename from URL. Falls back to 'download'.
+      __LINE__,
+      "http://www.google.com/path1/path2/",
+      "attachment; filename==?iso88591?Q?caf=E3?",
+      "",
+      "",
+      "image/jpeg",
+      L"download",
+      L"download" JPEG_EXT
+    },
+  };
+
+  // Tests filename generation.  Once the correct filename is
+  // selected, they should be passed through the validation steps and
+  // a correct extension should be added if necessary.
+  const GenerateFilenameCase generation_tests[] = {
+    // Dotfiles. Ensures preceeding period(s) stripped.
+    {
+      __LINE__,
+      "http://www.google.com/.test.html",
+      "",
+      "",
+      "",
+      "",
+      L"",
+      L"test.html"
+    },
+    {
+      __LINE__,
+      "http://www.google.com/.test",
+      "",
+      "",
+      "",
+      "",
+      L"",
+      L"test"
+    },
+    {
+      __LINE__,
+      "http://www.google.com/..test",
+      "",
+      "",
+      "",
+      "",
+      L"",
+      L"test"
+    },
+    { // Disposition has relative paths, remove directory separators
+      __LINE__,
+      "http://www.evil.com/my_download.txt",
+      "filename=../../../../././../a_file_name.txt",
+      "",
+      "",
+      "text/plain",
+      L"download",
+      L"-..-..-..-.-.-..-a_file_name.txt"
+    },
+    { // Disposition has parent directories, remove directory separators
+      __LINE__,
+      "http://www.evil.com/my_download.txt",
+      "filename=dir1/dir2/a_file_name.txt",
+      "",
+      "",
+      "text/plain",
+      L"download",
+      L"dir1-dir2-a_file_name.txt"
+    },
+    { // Disposition has relative paths, remove directory separators
+      __LINE__,
+      "http://www.evil.com/my_download.txt",
+      "filename=..\\..\\..\\..\\.\\.\\..\\a_file_name.txt",
+      "",
+      "",
+      "text/plain",
+      L"download",
+      L"-..-..-..-.-.-..-a_file_name.txt"
+    },
+    { // Disposition has parent directories, remove directory separators
+      __LINE__,
+      "http://www.evil.com/my_download.txt",
+      "filename=dir1\\dir2\\a_file_name.txt",
+      "",
+      "",
+      "text/plain",
+      L"download",
+      L"dir1-dir2-a_file_name.txt"
+    },
+    { // No useful information in disposition or URL, use default
+      __LINE__,
+      "http://www.truncated.com/path/",
+      "",
+      "",
+      "",
+      "text/plain",
+      L"download",
+      L"download" TXT_EXT
+    },
+    { // Filename looks like HTML?
+      __LINE__,
+      "http://www.evil.com/get/malware/here",
+      "filename=\"<blink>Hello kitty</blink>\"",
+      "",
+      "",
+      "text/plain",
+      L"default",
+      L"-blink-Hello kitty--blink-" TXT_EXT
+    },
+    { // A normal avi should get .avi and not .avi.avi
+      __LINE__,
+      "https://blah.google.com/misc/2.avi",
+      "",
+      "",
+      "",
+      "video/x-msvideo",
+      L"download",
+      L"2.avi"
+    },
+    { // Extension generation
+      __LINE__,
+      "http://www.example.com/my-cat",
+      "filename=my-cat",
+      "",
+      "",
+      "image/jpeg",
+      L"download",
+      L"my-cat" JPEG_EXT
+    },
+    {
+      __LINE__,
+      "http://www.example.com/my-cat",
+      "filename=my-cat",
+      "",
+      "",
+      "text/plain",
+      L"download",
+      L"my-cat.txt"
+    },
+    {
+      __LINE__,
+      "http://www.example.com/my-cat",
+      "filename=my-cat",
+      "",
+      "",
+      "text/html",
+      L"download",
+      L"my-cat" HTML_EXT
+    },
+    { // Unknown MIME type
+      __LINE__,
+      "http://www.example.com/my-cat",
+      "filename=my-cat",
+      "",
+      "",
+      "dance/party",
+      L"download",
+      L"my-cat"
+    },
+    {
+      __LINE__,
+      "http://www.example.com/my-cat.jpg",
+      "filename=my-cat.jpg",
+      "",
+      "",
+      "text/plain",
+      L"download",
+      L"my-cat.jpg"
+    },
+    // Windows specific tests
+#if defined(OS_WIN)
+    {
+      __LINE__,
+      "http://www.goodguy.com/evil.exe",
+      "filename=evil.exe",
+      "",
+      "",
+      "image/jpeg",
+      L"download",
+      L"evil.exe"
+    },
+    {
+      __LINE__,
+      "http://www.goodguy.com/ok.exe",
+      "filename=ok.exe",
+      "",
+      "",
+      "binary/octet-stream",
+      L"download",
+      L"ok.exe"
+    },
+    {
+      __LINE__,
+      "http://www.goodguy.com/evil.dll",
+      "filename=evil.dll",
+      "",
+      "",
+      "dance/party",
+      L"download",
+      L"evil.dll"
+    },
+    {
+      __LINE__,
+      "http://www.goodguy.com/evil.exe",
+      "filename=evil",
+      "",
+      "",
+      "application/rss+xml",
+      L"download",
+      L"evil"
+    },
+    // Test truncation of trailing dots and spaces
+    {
+      __LINE__,
+      "http://www.goodguy.com/evil.exe ",
+      "filename=evil.exe ",
+      "",
+      "",
+      "binary/octet-stream",
+      L"download",
+      L"evil.exe"
+    },
+    {
+      __LINE__,
+      "http://www.goodguy.com/evil.exe.",
+      "filename=evil.exe.",
+      "",
+      "",
+      "binary/octet-stream",
+      L"download",
+      L"evil.exe-"
+    },
+    {
+      __LINE__,
+      "http://www.goodguy.com/evil.exe.  .  .",
+      "filename=evil.exe.  .  .",
+      "",
+      "",
+      "binary/octet-stream",
+      L"download",
+      L"evil.exe-------"
+    },
+    {
+      __LINE__,
+      "http://www.goodguy.com/evil.",
+      "filename=evil.",
+      "",
+      "",
+      "binary/octet-stream",
+      L"download",
+      L"evil-"
+    },
+    {
+      __LINE__,
+      "http://www.goodguy.com/. . . . .",
+      "filename=. . . . .",
+      "",
+      "",
+      "binary/octet-stream",
+      L"download",
+      L"download"
+    },
+    {
+      __LINE__,
+      "http://www.badguy.com/attachment?name=meh.exe%C2%A0",
+      "attachment; filename=\"meh.exe\xC2\xA0\"",
+      "",
+      "",
+      "binary/octet-stream",
+      L"",
+      L"meh.exe-"
+    },
+#endif  // OS_WIN
+    {
+      __LINE__,
+      "http://www.goodguy.com/utils.js",
+      "filename=utils.js",
+      "",
+      "",
+      "application/x-javascript",
+      L"download",
+      L"utils.js"
+    },
+    {
+      __LINE__,
+      "http://www.goodguy.com/contacts.js",
+      "filename=contacts.js",
+      "",
+      "",
+      "application/json",
+      L"download",
+      L"contacts.js"
+    },
+    {
+      __LINE__,
+      "http://www.goodguy.com/utils.js",
+      "filename=utils.js",
+      "",
+      "",
+      "text/javascript",
+      L"download",
+      L"utils.js"
+    },
+    {
+      __LINE__,
+      "http://www.goodguy.com/utils.js",
+      "filename=utils.js",
+      "",
+      "",
+      "text/javascript;version=2",
+      L"download",
+      L"utils.js"
+    },
+    {
+      __LINE__,
+      "http://www.goodguy.com/utils.js",
+      "filename=utils.js",
+      "",
+      "",
+      "application/ecmascript",
+      L"download",
+      L"utils.js"
+    },
+    {
+      __LINE__,
+      "http://www.goodguy.com/utils.js",
+      "filename=utils.js",
+      "",
+      "",
+      "application/ecmascript;version=4",
+      L"download",
+      L"utils.js"
+    },
+    {
+      __LINE__,
+      "http://www.goodguy.com/program.exe",
+      "filename=program.exe",
+      "",
+      "",
+      "application/foo-bar",
+      L"download",
+      L"program.exe"
+    },
+    {
+      __LINE__,
+      "http://www.evil.com/../foo.txt",
+      "filename=../foo.txt",
+      "",
+      "",
+      "text/plain",
+      L"download",
+      L"-foo.txt"
+    },
+    {
+      __LINE__,
+      "http://www.evil.com/..\\foo.txt",
+      "filename=..\\foo.txt",
+      "",
+      "",
+      "text/plain",
+      L"download",
+      L"-foo.txt"
+    },
+    {
+      __LINE__,
+      "http://www.evil.com/.hidden",
+      "filename=.hidden",
+      "",
+      "",
+      "text/plain",
+      L"download",
+      L"hidden" TXT_EXT
+    },
+    {
+      __LINE__,
+      "http://www.evil.com/trailing.",
+      "filename=trailing.",
+      "",
+      "",
+      "dance/party",
+      L"download",
+#if defined(OS_WIN)
+      L"trailing-"
+#else
+      L"trailing"
+#endif
+    },
+    {
+      __LINE__,
+      "http://www.evil.com/trailing.",
+      "filename=trailing.",
+      "",
+      "",
+      "text/plain",
+      L"download",
+#if defined(OS_WIN)
+      L"trailing-" TXT_EXT
+#else
+      L"trailing" TXT_EXT
+#endif
+    },
+    {
+      __LINE__,
+      "http://www.evil.com/.",
+      "filename=.",
+      "",
+      "",
+      "dance/party",
+      L"download",
+      L"download"
+    },
+    {
+      __LINE__,
+      "http://www.evil.com/..",
+      "filename=..",
+      "",
+      "",
+      "dance/party",
+      L"download",
+      L"download"
+    },
+    {
+      __LINE__,
+      "http://www.evil.com/...",
+      "filename=...",
+      "",
+      "",
+      "dance/party",
+      L"download",
+      L"download"
+    },
+    { // Note that this one doesn't have "filename=" on it.
+      __LINE__,
+      "http://www.evil.com/",
+      "a_file_name.txt",
+      "",
+      "",
+      "image/jpeg",
+      L"download",
+      L"download" JPEG_EXT
+    },
+    {
+      __LINE__,
+      "http://www.evil.com/",
+      "filename=",
+      "",
+      "",
+      "image/jpeg",
+      L"download",
+      L"download" JPEG_EXT
+    },
+    {
+      __LINE__,
+      "http://www.example.com/simple",
+      "filename=simple",
+      "",
+      "",
+      "application/octet-stream",
+      L"download",
+      L"simple"
+    },
+    // Reserved words on Windows
+    {
+      __LINE__,
+      "http://www.goodguy.com/COM1",
+      "filename=COM1",
+      "",
+      "",
+      "application/foo-bar",
+      L"download",
+#if defined(OS_WIN)
+      L"_COM1"
+#else
+      L"COM1"
+#endif
+    },
+    {
+      __LINE__,
+      "http://www.goodguy.com/COM4.txt",
+      "filename=COM4.txt",
+      "",
+      "",
+      "text/plain",
+      L"download",
+#if defined(OS_WIN)
+      L"_COM4.txt"
+#else
+      L"COM4.txt"
+#endif
+    },
+    {
+      __LINE__,
+      "http://www.goodguy.com/lpt1.TXT",
+      "filename=lpt1.TXT",
+      "",
+      "",
+      "text/plain",
+      L"download",
+#if defined(OS_WIN)
+      L"_lpt1.TXT"
+#else
+      L"lpt1.TXT"
+#endif
+    },
+    {
+      __LINE__,
+      "http://www.goodguy.com/clock$.txt",
+      "filename=clock$.txt",
+      "",
+      "",
+      "text/plain",
+      L"download",
+#if defined(OS_WIN)
+      L"_clock$.txt"
+#else
+      L"clock$.txt"
+#endif
+    },
+    { // Validation should also apply to sugested name
+      __LINE__,
+      "http://www.goodguy.com/blah$.txt",
+      "filename=clock$.txt",
+      "",
+      "clock$.txt",
+      "text/plain",
+      L"download",
+#if defined(OS_WIN)
+      L"_clock$.txt"
+#else
+      L"clock$.txt"
+#endif
+    },
+    {
+      __LINE__,
+      "http://www.goodguy.com/mycom1.foo",
+      "filename=mycom1.foo",
+      "",
+      "",
+      "text/plain",
+      L"download",
+      L"mycom1.foo"
+    },
+    {
+      __LINE__,
+      "http://www.badguy.com/Setup.exe.local",
+      "filename=Setup.exe.local",
+      "",
+      "",
+      "application/foo-bar",
+      L"download",
+#if defined(OS_WIN)
+      L"Setup.exe.download"
+#else
+      L"Setup.exe.local"
+#endif
+    },
+    {
+      __LINE__,
+      "http://www.badguy.com/Setup.exe.local",
+      "filename=Setup.exe.local.local",
+      "",
+      "",
+      "application/foo-bar",
+      L"download",
+#if defined(OS_WIN)
+      L"Setup.exe.local.download"
+#else
+      L"Setup.exe.local.local"
+#endif
+    },
+    {
+      __LINE__,
+      "http://www.badguy.com/Setup.exe.lnk",
+      "filename=Setup.exe.lnk",
+      "",
+      "",
+      "application/foo-bar",
+      L"download",
+#if defined(OS_WIN)
+      L"Setup.exe.download"
+#else
+      L"Setup.exe.lnk"
+#endif
+    },
+    {
+      __LINE__,
+      "http://www.badguy.com/Desktop.ini",
+      "filename=Desktop.ini",
+      "",
+      "",
+      "application/foo-bar",
+      L"download",
+#if defined(OS_WIN)
+      L"_Desktop.ini"
+#else
+      L"Desktop.ini"
+#endif
+    },
+    {
+      __LINE__,
+      "http://www.badguy.com/Thumbs.db",
+      "filename=Thumbs.db",
+      "",
+      "",
+      "application/foo-bar",
+      L"download",
+#if defined(OS_WIN)
+      L"_Thumbs.db"
+#else
+      L"Thumbs.db"
+#endif
+    },
+    {
+      __LINE__,
+      "http://www.hotmail.com",
+      "filename=source.jpg",
+      "",
+      "",
+      "application/x-javascript",
+      L"download",
+      L"source.jpg"
+    },
+    { // http://crbug.com/5772.
+      __LINE__,
+      "http://www.example.com/foo.tar.gz",
+      "",
+      "",
+      "",
+      "application/x-tar",
+      L"download",
+      L"foo.tar.gz"
+    },
+    { // http://crbug.com/52250.
+      __LINE__,
+      "http://www.example.com/foo.tgz",
+      "",
+      "",
+      "",
+      "application/x-tar",
+      L"download",
+      L"foo.tgz"
+    },
+    { // http://crbug.com/7337.
+      __LINE__,
+      "http://maged.lordaeron.org/blank.reg",
+      "",
+      "",
+      "",
+      "text/x-registry",
+      L"download",
+      L"blank.reg"
+    },
+    {
+      __LINE__,
+      "http://www.example.com/bar.tar",
+      "",
+      "",
+      "",
+      "application/x-tar",
+      L"download",
+      L"bar.tar"
+    },
+    {
+      __LINE__,
+      "http://www.example.com/bar.bogus",
+      "",
+      "",
+      "",
+      "application/x-tar",
+      L"download",
+      L"bar.bogus"
+    },
+    { // http://crbug.com/20337
+      __LINE__,
+      "http://www.example.com/.download.txt",
+      "filename=.download.txt",
+      "",
+      "",
+      "text/plain",
+      L"-download",
+      L"download.txt"
+    },
+    { // http://crbug.com/56855.
+      __LINE__,
+      "http://www.example.com/bar.sh",
+      "",
+      "",
+      "",
+      "application/x-sh",
+      L"download",
+      L"bar.sh"
+    },
+    { // http://crbug.com/61571
+      __LINE__,
+      "http://www.example.com/npdf.php?fn=foobar.pdf",
+      "",
+      "",
+      "",
+      "text/plain",
+      L"download",
+      L"npdf" TXT_EXT
+    },
+    { // Shouldn't overwrite C-D specified extension.
+      __LINE__,
+      "http://www.example.com/npdf.php?fn=foobar.pdf",
+      "filename=foobar.jpg",
+      "",
+      "",
+      "text/plain",
+      L"download",
+      L"foobar.jpg"
+    },
+    { // http://crbug.com/87719
+      __LINE__,
+      "http://www.example.com/image.aspx?id=blargh",
+      "",
+      "",
+      "",
+      "image/jpeg",
+      L"download",
+      L"image" JPEG_EXT
+    },
+#if defined(OS_CHROMEOS)
+    { // http://crosbug.com/26028
+      __LINE__,
+      "http://www.example.com/fooa%cc%88.txt",
+      "",
+      "",
+      "",
+      "image/jpeg",
+      L"foo\xe4",
+      L"foo\xe4.txt"
+    },
+#endif
+  };
+
+  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(selection_tests); ++i)
+    RunGenerateFileNameTestCase(&selection_tests[i]);
+
+  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(generation_tests); ++i)
+    RunGenerateFileNameTestCase(&generation_tests[i]);
+
+  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(generation_tests); ++i) {
+    GenerateFilenameCase test_case = generation_tests[i];
+    test_case.referrer_charset = "GBK";
+    RunGenerateFileNameTestCase(&test_case);
+  }
+}
+
 // This is currently a windows specific function.
 #if defined(OS_WIN)
 namespace {
@@ -1812,6 +3368,88 @@
   }
 }
 
+static const base::FilePath::CharType* kSafePortableBasenames[] = {
+  FILE_PATH_LITERAL("a"),
+  FILE_PATH_LITERAL("a.txt"),
+  FILE_PATH_LITERAL("a b.txt"),
+  FILE_PATH_LITERAL("a-b.txt"),
+  FILE_PATH_LITERAL("My Computer"),
+  FILE_PATH_LITERAL(" Computer"),
+};
+
+static const base::FilePath::CharType* kUnsafePortableBasenames[] = {
+  FILE_PATH_LITERAL(""),
+  FILE_PATH_LITERAL("."),
+  FILE_PATH_LITERAL(".."),
+  FILE_PATH_LITERAL("..."),
+  FILE_PATH_LITERAL("con"),
+  FILE_PATH_LITERAL("con.zip"),
+  FILE_PATH_LITERAL("NUL"),
+  FILE_PATH_LITERAL("NUL.zip"),
+  FILE_PATH_LITERAL(".a"),
+  FILE_PATH_LITERAL("a."),
+  FILE_PATH_LITERAL("a\"a"),
+  FILE_PATH_LITERAL("a<a"),
+  FILE_PATH_LITERAL("a>a"),
+  FILE_PATH_LITERAL("a?a"),
+  FILE_PATH_LITERAL("a/"),
+  FILE_PATH_LITERAL("a\\"),
+  FILE_PATH_LITERAL("a "),
+  FILE_PATH_LITERAL("a . ."),
+  FILE_PATH_LITERAL("My Computer.{a}"),
+  FILE_PATH_LITERAL("My Computer.{20D04FE0-3AEA-1069-A2D8-08002B30309D}"),
+#if !defined(OS_WIN)
+  FILE_PATH_LITERAL("a\\a"),
+#endif
+};
+
+static const base::FilePath::CharType* kSafePortableRelativePaths[] = {
+  FILE_PATH_LITERAL("a/a"),
+#if defined(OS_WIN)
+  FILE_PATH_LITERAL("a\\a"),
+#endif
+};
+
+TEST(NetUtilTest, IsSafePortablePathComponent) {
+  for (size_t i = 0 ; i < arraysize(kSafePortableBasenames); ++i) {
+    EXPECT_TRUE(IsSafePortablePathComponent(base::FilePath(
+        kSafePortableBasenames[i]))) << kSafePortableBasenames[i];
+  }
+  for (size_t i = 0 ; i < arraysize(kUnsafePortableBasenames); ++i) {
+    EXPECT_FALSE(IsSafePortablePathComponent(base::FilePath(
+        kUnsafePortableBasenames[i]))) << kUnsafePortableBasenames[i];
+  }
+  for (size_t i = 0 ; i < arraysize(kSafePortableRelativePaths); ++i) {
+    EXPECT_FALSE(IsSafePortablePathComponent(base::FilePath(
+        kSafePortableRelativePaths[i]))) << kSafePortableRelativePaths[i];
+  }
+}
+
+TEST(NetUtilTest, IsSafePortableRelativePath) {
+  base::FilePath safe_dirname(FILE_PATH_LITERAL("a"));
+  for (size_t i = 0 ; i < arraysize(kSafePortableBasenames); ++i) {
+    EXPECT_TRUE(IsSafePortableRelativePath(base::FilePath(
+        kSafePortableBasenames[i]))) << kSafePortableBasenames[i];
+    EXPECT_TRUE(IsSafePortableRelativePath(safe_dirname.Append(base::FilePath(
+        kSafePortableBasenames[i])))) << kSafePortableBasenames[i];
+  }
+  for (size_t i = 0 ; i < arraysize(kSafePortableRelativePaths); ++i) {
+    EXPECT_TRUE(IsSafePortableRelativePath(base::FilePath(
+        kSafePortableRelativePaths[i]))) << kSafePortableRelativePaths[i];
+    EXPECT_TRUE(IsSafePortableRelativePath(safe_dirname.Append(base::FilePath(
+        kSafePortableRelativePaths[i])))) << kSafePortableRelativePaths[i];
+  }
+  for (size_t i = 0 ; i < arraysize(kUnsafePortableBasenames); ++i) {
+    EXPECT_FALSE(IsSafePortableRelativePath(base::FilePath(
+        kUnsafePortableBasenames[i]))) << kUnsafePortableBasenames[i];
+    if (!base::FilePath::StringType(kUnsafePortableBasenames[i]).empty()) {
+      EXPECT_FALSE(IsSafePortableRelativePath(safe_dirname.Append(
+          base::FilePath(kUnsafePortableBasenames[i]))))
+        << kUnsafePortableBasenames[i];
+    }
+  }
+}
+
 struct NonUniqueNameTestData {
   bool is_unique;
   const char* hostname;