Update the OWNERS file with the current CWP team members

Bug=None

Change-Id: I73c027230d324d9281d60e3a60be80f403472e92
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1637047Reviewed-by: Ilya Sherman <isherman@chromium.org>
Reviewed-by: Gabriel Marin <gmx@chromium.org>
Commit-Queue: Ilya Sherman <isherman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#665066}

chrome/browser/metrics/perf/OWNERS

-chongjiang@chromium.org
 gmx@chromium.org
-lakshmana@chromium.org
-sque@chromium.org
+# No Chromium committer status:
+# aalexand@google.com
+# lakshmana@chromium.org