wstring: remove a needless wchar_t that is ASCII

chrome/browser/profiles/profile_manager_unittest.cc

Index: chrome/browser/profiles/profile_manager_unittest.cc
diff --git a/chrome/browser/profiles/profile_manager_unittest.cc b/chrome/browser/profiles/profile_manager_unittest.cc
index 81c99bbaa905a1edb6e1a7b35b55c525bf65b9f6..42cd9c2510048a13f1011d852d661040f51d18ac 100644
--- a/chrome/browser/profiles/profile_manager_unittest.cc
+++ b/chrome/browser/profiles/profile_manager_unittest.cc
@@ -84,7 +84,7 @@ TEST_F(ProfileManagerTest, DefaultProfileDir) {
   cl->AppendSwitch(switches::kTestType);
 
   FilePath expected_default =
-      FilePath::FromWStringHack(chrome::kNotSignedInProfile);
+      FilePath().AppendASCII(chrome::kNotSignedInProfile);
   EXPECT_EQ(expected_default.value(),
             profile_manager.GetCurrentProfileDir().value());
 }
@@ -101,7 +101,7 @@ TEST_F(ProfileManagerTest, LoggedInProfileDir) {
   cl->AppendSwitch(switches::kTestType);
 
   FilePath expected_default =
-      FilePath::FromWStringHack(chrome::kNotSignedInProfile);
+      FilePath().AppendASCII(chrome::kNotSignedInProfile);
   EXPECT_EQ(expected_default.value(),
             profile_manager.GetCurrentProfileDir().value());