Guard against NullPointerException currently
occurring in Volley when a Request is given a url whose host is null.

Change-Id: Idab1dadaa43bb9176356028221cbdc0f8dd52cdc
Merge "Guard against NullPointerException currently occurring in Volley when a Request is given a url whose host is null."
Merge branch 'master' of https://android.googlesource.com/platform/frameworks/volley