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."
ImageLoader: setError after null check

if request was canceled it will have already been removed
from mInFlightRequests and cause NPE

Change-Id: I1ce78bb6b3b2964545a47b5e3bb59bdf1a6d940e
Merge "ImageLoader: setError after null check"
Merge remote-tracking branch 'google/master'