tree e7eeee151c3fcc81762845d8dca72401a4471c4d
parent 2b5c5fde012ebbc28208891aa7c95f3e13ce1d0a
author Christopher Wiley <wiley@google.com> 1460404428 -0700
committer Christopher Wiley <wiley@google.com> 1460404428 -0700

Only define DISALLOW_IMPLICIT_CONSTRUCTORS if undefined

This fixes a conflict with Android's libbase over who gets to
define this very uninteresting macro.

Bug: 28117776
Change-Id: I9ef69957d0ba1469225c9701a8355d43f64d6eee
Test: Compiles.