DO NOT MERGE. Cherry pick 'Set context classloader in AndroidJUnitRunner.'

Needed for dexmaker.

Bug: 10428506

Change-Id: I77fe0be4074f13fbc49ca6c433916e5ad3ab1ed5
(cherry picked from commit eabf4296c60bd2bfb5efb2dc0661310be0962278)
1 file changed