wstring: remove a needless wchar_t that is ASCII

chrome/browser/profiles/profile_manager.cc

Index: chrome/browser/profiles/profile_manager.cc
diff --git a/chrome/browser/profiles/profile_manager.cc b/chrome/browser/profiles/profile_manager.cc
index e81b0e5214d9e62f8131a9cef3f8be58a8039e3c..743fafbd150893e1b084eb31e93c1cf1d0b42cd8 100644
--- a/chrome/browser/profiles/profile_manager.cc
+++ b/chrome/browser/profiles/profile_manager.cc
@@ -73,8 +73,8 @@ ProfileManager::~ProfileManager() {
 FilePath ProfileManager::GetDefaultProfileDir(
     const FilePath& user_data_dir) {
   FilePath default_profile_dir(user_data_dir);
-  default_profile_dir = default_profile_dir.Append(
-      FilePath::FromWStringHack(chrome::kNotSignedInProfile));
+  default_profile_dir =
+      default_profile_dir.AppendASCII(chrome::kNotSignedInProfile);
   return default_profile_dir;
 }
 
@@ -103,8 +103,8 @@ FilePath ProfileManager::GetCurrentProfileDir() {
     return relative_profile_dir;
   }
 #endif
-  relative_profile_dir = relative_profile_dir.Append(
-      FilePath::FromWStringHack(chrome::kNotSignedInProfile));
+  relative_profile_dir =
+      relative_profile_dir.AppendASCII(chrome::kNotSignedInProfile);
   return relative_profile_dir;
 }