Use -Werror in external/google-benchmark am: 1fa9c1ac24 am: 97a79a69d1 am: 1d90b70a8d
am: fd53efc39d

Change-Id: I9bf7ae8ade21f1c28a866d73888612073a5da6b1
diff --git a/Android.bp b/Android.bp
index 4b25e3e..8301356 100644
--- a/Android.bp
+++ b/Android.bp
@@ -26,6 +26,7 @@
     cflags: [
         "-DBENCHMARK_ANDROID",
         "-DHAVE_POSIX_REGEX",
+        "-Werror",
     ],
 
     srcs: [