Add scheib as extensions/apps team owner.

chrome/browser/extensions/OWNERS

Index: chrome/browser/extensions/OWNERS
diff --git a/chrome/browser/extensions/OWNERS b/chrome/browser/extensions/OWNERS
index b4779a602f2e3651c62731c06c3bb3f6131b8315..c684e8045577df4de72e0b30c88dc776d1843cc8 100644
--- a/chrome/browser/extensions/OWNERS
+++ b/chrome/browser/extensions/OWNERS
@@ -1,20 +1,26 @@
-# Core extension team members. Specific extension APIs may have other authors
-# (e.g. dmazzoni@ for TTS, kalman@ for settings), please check with them when
-# making significant changes.
+# Core extension and apps team members.
 #
-# If you are editing this file, please also update
-# chrome/browser/chromeos/extensions/OWNERS
-# chrome/common/extensions/OWNERS
-# chrome/renderer/extensions/OWNERS
-# chrome/renderer/resources/extensions/OWNERS
-# extensions/OWNERS
-asargent@chromium.org
+# Specific extension APIs may have other authors (e.g. dmazzoni@ for TTS,
+# kalman@ for settings), please check with them when making significant changes.
+#
+# Use file history to guide reviewer selection as this list is randomized.
+#
+# If you are editing this file, please also update these other OWNERS files with
+# a unique random sort (sort -R) of these owners.
+#   chrome/browser/chromeos/extensions/OWNERS
+#   chrome/common/extensions/OWNERS
+#   chrome/renderer/extensions/OWNERS
+#   chrome/renderer/resources/extensions/OWNERS
+#   extensions/OWNERS
 benwells@chromium.org
 finnur@chromium.org
-jyasskin@chromium.org
-kalman@chromium.org
-koz@chromium.org
-mek@chromium.org
-miket@chromium.org
 mpcomplete@chromium.org
+scheib@chromium.org
+miket@chromium.org
+kalman@chromium.org
+asargent@chromium.org
 yoz@chromium.org
+mek@chromium.org
+jyasskin@chromium.org
+koz@chromium.org
+