Add default code reviewers into OWNERS am: a46c971a86 am: aa8638ac7d
am: e31c248096

Change-Id: I18a0657bb2275adca99bae0988d3be44661ebfb9
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..d07a830
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1,4 @@
+# Default code reviewers picked from top 3 or more developers.
+# Please update this list if you find better candidates.
+hhb@google.com
+siuchow@google.com