Use registered users in Browser2 OWNERS files.

AOSP project owners should be registered in Gerrit Code Review.

Bug: 33166666
Test: default build targets
Change-Id: I5f8be8ab53f8ec785bee6703f8012d834162ad32
diff --git a/OWNERS b/OWNERS
index e052263..93b9b35 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1 +1,3 @@
-timvolodine@chromium.org
\ No newline at end of file
+# timvolodine@google.com
+sgurun@android.com
+byi@google.com