Add skobes, npm, and sullivan as page_load_metrics_owners

Shift csharrison down in hopes of spreading out the reviewer load a little.

Change-Id: Iacac4dd0103c07d7505336d312dbf60152d03783
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2151484
Commit-Queue: Annie Sullivan <sullivan@chromium.org>
Reviewed-by: Steve Kobes <skobes@chromium.org>
Reviewed-by: Bryan McQuade <bmcquade@chromium.org>
Cr-Commit-Position: refs/heads/master@{#759705}

chrome/browser/page_load_metrics/OWNERS

-csharrison@chromium.org
+# Please send significant changes to functionality and non-trivial changes to
+# core files like metrics_web_contents_observer.cc and
+# page_load_tracker.cc to bmcquade or skobes.
+
 bmcquade@chromium.org
+skobes@chromium.org
+npm@chromium.org
+sullivan@chromium.org
+csharrison@chromium.org
 jkarlin@chromium.org
 ryansturm@chromium.org
 johnidel@chromium.org
@@ -10,4 +17,5 @@ kinuko@chromium.org
 
 # For QUIC version changes in ConnectionInfo switch statmenets.
 per-file protocol_util.cc=file://net/quic/OWNERS
+
 # COMPONENT: Speed>Metrics

components/page_load_metrics/OWNERS

-csharrison@chromium.org
+# Please send significant changes to functionality and non-trivial changes to
+# core files like metrics_web_contents_observer.cc and
+# page_load_tracker.cc to bmcquade or skobes.
+
 bmcquade@chromium.org
+skobes@chromium.org
+npm@chromium.org
+sullivan@chromium.org
+csharrison@chromium.org
 jkarlin@chromium.org
 ryansturm@chromium.org
 johnidel@chromium.org
@@ -7,3 +14,5 @@ johnidel@chromium.org
 # For straightforward addition/removal to existing observers only (for
 # APAC).
 kinuko@chromium.org
+
+# COMPONENT: Speed>Metrics