Move UTF16ToASCII, remove WideToASCII.

chrome/installer/util/installer_state.cc

Index: chrome/installer/util/installer_state.cc
diff --git a/chrome/installer/util/installer_state.cc b/chrome/installer/util/installer_state.cc
index 500aadce456ddaa2cb025566e1bdb6955bbf54f5..a5ed9d96e8842f93c1cab359f9ea1ee0eb51ca9f 100644
--- a/chrome/installer/util/installer_state.cc
+++ b/chrome/installer/util/installer_state.cc
@@ -662,7 +662,7 @@ void InstallerState::GetExistingExeVersions(
     if (file_version_info) {
       base::string16 version_string = file_version_info->file_version();
       if (!version_string.empty() && IsStringASCII(version_string))
-        existing_versions->insert(WideToASCII(version_string));
+        existing_versions->insert(base::UTF16ToASCII(version_string));
     }
   }
 }
@@ -689,7 +689,7 @@ void InstallerState::RemoveOldVersionDirectories(
   for (base::FilePath next_version = version_enum.Next(); !next_version.empty();
        next_version = version_enum.Next()) {
     base::FilePath dir_name(next_version.BaseName());
-    version = Version(WideToASCII(dir_name.value()));
+    version = Version(base::UTF16ToASCII(dir_name.value()));
     // Delete the version folder if it is less than the new version and not
     // equal to the old version (if we have an old version).
     if (version.IsValid() &&