Ensure we don't leak a callback object when starting a sandboxed process.

On Android we would leak a callback object if we failed to create a sanbox
process.  This ensures we delete it properly.

BUG=None
TEST=Android test shell should still work.


Review URL: https://chromiumcodereview.appspot.com/10913085

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@155013 0039d316-1c4b-4281-b951-d872f2087c98
2 files changed