1 files changed, 11 insertions, 2 deletions
diff --git a/content/browser/child_process_security_policy_impl.cc b/content/browser/child_process_security_policy_impl.cc
index 006418e3..e86ccae 100644
--- a/content/browser/child_process_security_policy_impl.cc
+++ b/content/browser/child_process_security_policy_impl.cc
@@ -148,9 +148,18 @@ class ChildProcessSecurityPolicyImpl::SecurityState {
   bool HasPermissionsForFile(const FilePath& file, int permissions) {
     FilePath current_path = file.StripTrailingSeparators();
     FilePath last_path;
+    int skip = 0;
     while (current_path != last_path) {
-      if (file_permissions_.find(current_path) != file_permissions_.end())
-        return (file_permissions_[current_path] & permissions) == permissions;
+      FilePath base_name =  current_path.BaseName();
+      if (base_name.value() == FilePath::kParentDirectory) {
+        ++skip;
+      } else if (skip > 0) {
+        if (base_name.value() != FilePath::kCurrentDirectory)
+          --skip;
+      } else {
+        if (file_permissions_.find(current_path) != file_permissions_.end())
+          return (file_permissions_[current_path] & permissions) == permissions;
+      }
       last_path = current_path;
       current_path = current_path.DirName();
     }