Sanitize enclosing quotes around paths in policies.

chrome/browser/policy/policy_path_parser_win.cc

Index: chrome/browser/policy/policy_path_parser_win.cc
diff --git a/chrome/browser/policy/policy_path_parser_win.cc b/chrome/browser/policy/policy_path_parser_win.cc
index 89c3a446f4ac057631a2aac7d80c36c0e98737d2..33e8af8e9b5b14e5ef5d3f56bdce53a14d0d50bb 100644
--- a/chrome/browser/policy/policy_path_parser_win.cc
+++ b/chrome/browser/policy/policy_path_parser_win.cc
@@ -44,6 +44,15 @@ const WinFolderNamesToCSIDLMapping win_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] == L'"' && result[result.length() - 1] == L'"') ||
+       (result[0] == L'\'' && result[result.length() - 1] == L'\''))) {
+    // 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 (int i = 0; i < arraysize(win_folder_mapping); ++i) {
     size_t position = result.find(win_folder_mapping[i].name);