Add ssid@ to OWNERS for chromium-related reviews.

Change-Id: If9848496e3887f22c2392883807527b5838a31d1

OWNERS

diff --git a/OWNERS b/OWNERS
index 6054d1e..4ed8f1c 100644
--- a/OWNERS
+++ b/OWNERS
@@ -10,6 +10,7 @@
 oysteine@google.com
 eseckler@google.com
 nuskos@google.com
+ssid@google.com
 
 # TEAM: tracing@chromium.org
 # COMPONENT: Speed>Tracing