tree fadc7b59c9dddd94e2dfaaf58bc49d6c850c32f2
parent c912ed05196d18b4f9ce0876b52b600437d1b497
author Dimitry Ivanov <dimitry@google.com> 1464024671 -0700
committer Dimitry Ivanov <dimitry@google.com> 1464032637 -0700

Do not resolve caller_ns when it is not needed

create_namespace resolves caller namespace only
when caller did not explicitly specify parent namespace.

This saves about 25 microseconds for the case when
parent_namepsace is not null (for example when creating
second classloader for the app).

Bug: http://b/28801010
Change-Id: I50ded272c931db701e5a1d8c88ed5ffb13416539
(cherry picked from commit 5240863ed559cb4c2b121ddfbf6b3d78ac15e38f)