Sanitize enclosing quotes around paths in policies.

chrome/browser/policy/policy_path_parser_mac.mm

Index: chrome/browser/policy/policy_path_parser_mac.mm
diff --git a/chrome/browser/policy/policy_path_parser_mac.mm b/chrome/browser/policy/policy_path_parser_mac.mm
index 48d0653c574ee8765c5b7d29b0508b9590cfe185..7f1d3dab2bec5cd5d5f753b43e78b71913c151af 100644
--- a/chrome/browser/policy/policy_path_parser_mac.mm
+++ b/chrome/browser/policy/policy_path_parser_mac.mm
@@ -38,6 +38,15 @@ const MacFolderNamesToSPDMaping mac_folder_mapping[] = {
 FilePath::StringType ExpandPathVariables(
     const FilePath::StringType& untranslated_string) {
   FilePath::StringType result(untranslated_string);
+  if (result.length() == 0)
+    return result;
+  // Sanitize quotes in case of any around the whole string.
+  if (result.length() > 1 &&
+      ((result[0] == '"' && result[result.length() - 1] == '"') ||
+      (result[0] == '\'' && result[result.length() - 1] == '\''))) {
+    // Strip first and last char which should be matching quotes now.
+    result = result.substr(1, result.length() - 2);
+  }
   // First translate all path variables we recognize.
   for (size_t i = 0; i < arraysize(mac_folder_mapping); ++i) {
     size_t position = result.find(mac_folder_mapping[i].name);