Skip root dir when iterating over path in reparse points search.

It turns out that ::GetFileAttributes(...) Windows API for paths in form of "<drive>:" returns attribute of binary file work dir instead of "<drive>:\"
dir.

BUG=340625

Review URL: https://codereview.chromium.org/150093006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249667 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed