including build/build_config to fix bustage


git-svn-id: svn://svn.chromium.org/chrome/trunk/src@843 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: d487817b5b228c1be730b2063e9e6bfe47ea4bdf
diff --git a/base/time_unittest.cc b/base/time_unittest.cc
index ca99da8..829c579 100644
--- a/base/time_unittest.cc
+++ b/base/time_unittest.cc
@@ -27,6 +27,8 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+#include "build/build_config.h"
+
 #include <time.h>
 
 #if defined(OS_WIN)