flags: assign media-router-cast-allow-all-ips

Bug: None
Change-Id: If6cbce7a49f9ac697993644156ad4a4e8f7a3a51
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1638737Reviewed-by: mark a. foltz <mfoltz@chromium.org>
Commit-Queue: mark a. foltz <mfoltz@chromium.org>
Auto-Submit: Elly Fong-Jones <ellyjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#665961}

chrome/browser/flag-metadata.json

@@ -2195,8 +2195,12 @@
   },
   {
     "name": "media-router-cast-allow-all-ips",
-    // "owners": [ "your-team" ],
-    "expiry_milestone": 76
+    "owners": [ "mfoltz" ],
+    // This flag is used by users with unusual network configurations to allow
+    // cast to work, but enabling this behavior has security implications that
+    // aren't easily understood. It is primarily used by support to help
+    // individual users get cast working.
+    "expiry_milestone": -1
   },
   {
     "name": "memlog",

chrome/browser/flag-never-expire-list.json

@@ -64,6 +64,7 @@
   "in-product-help-demo-mode-choice",
   "list-all-display-modes",
   "load-media-router-component-extension",
+  "media-router-cast-allow-all-ips",
   "memlog",
   "memlog-sampling-rate",
   "memlog-stack-mode",