Adding Peter Thatcher to the owners file.
BUG=N/A

Review URL: https://codereview.chromium.org/1066153002

Cr-Original-Commit-Position: refs/heads/master@{#324124}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: ee7183a5b43044fd2665350357c02d88332099a3
diff --git a/OWNERS b/OWNERS
index 8d7c574..3536f47 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1,2 +1,3 @@
 mallinath@chromium.org
+pthatcher@chromium.org
 ronghuawu@chromium.org