Add password search and accessory flag owners

Adding an owner for password search and password accessory flags.

Change-Id: I07b80dbd7180a40741f330ad22c24657d84450d0
Reviewed-on: https://chromium-review.googlesource.com/c/1341534
Commit-Queue: Elly Fong-Jones <ellyjones@chromium.org>
Reviewed-by: Ioana Pandele <ioanap@chromium.org>
Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#609287}

chrome/browser/flag-metadata.json

@@ -289,7 +289,7 @@
   },
   {
     "name": "automatic-password-generation",
-    // "owners": [ "your-team" ],
+    "owners": [ "ioanap", "fhorschig" ],
     "expiry_milestone": 76
   },
   {
@@ -2736,12 +2736,12 @@
   },
   {
     "name": "password-search",
-    // "owners": [ "your-team" ],
-    "expiry_milestone": 76
+    "owners": [ "fhorschig" ],
+    "expiry_milestone": 73
   },
   {
     "name": "passwords-keyboard-accessory",
-    // "owners": [ "your-team" ],
+    "owners": [ "fhorschig" ],
     "expiry_milestone": 76
   },
   {