flags: assign explore-sites

Bug: None
Change-Id: I1c886560a1ae294bccd6b2fe4a000ae948d27d2d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1559890
Auto-Submit: Elly Fong-Jones <ellyjones@chromium.org>
Commit-Queue: Cathy Li <chili@chromium.org>
Reviewed-by: Cathy Li <chili@chromium.org>
Cr-Commit-Position: refs/heads/master@{#649215}

chrome/browser/flag-metadata.json

@@ -1993,8 +1993,8 @@
   },
   {
     "name": "explore-sites",
-    // "owners": [ "your-team" ],
-    "expiry_milestone": 76
+    "owners": [ "chili", "dewittj" ],
+    "expiry_milestone": 83
   },
   {
     "name": "extension-apis",