[omnibox] Update a few flag expiry_milestone's from 80 to 85.

Change-Id: I96e6877c3c1eee0161208b9f4d776dac2f82b4b9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1917330Reviewed-by: Tommy Li <tommycli@chromium.org>
Commit-Queue: manuk hovanesian <manukh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#715418}

chrome/browser/flag-metadata.json

@@ -2769,7 +2769,7 @@
   {
     "name": "omnibox-drive-suggestions",
     "owners": [ "manukh", "chrome-omnibox-team@google.com" ],
-    "expiry_milestone": 80
+    "expiry_milestone": 85
   },
   {
     "name": "omnibox-experimental-keyword-mode",
@@ -2789,7 +2789,7 @@
   {
     "name": "omnibox-local-entity-suggestions",
     "owners": [ "manukh", "chrome-omnibox-team@google.com" ],
-    "expiry_milestone": 80
+    "expiry_milestone": 85
   },
   {
     "name": "omnibox-loose-max-limit-on-dedicated-rows",
@@ -2799,7 +2799,7 @@
   {
     "name": "omnibox-material-design-weather-icons",
     "owners": [ "manukh", "ender", "chromium-omnibox-team" ],
-    "expiry_milestone": 80
+    "expiry_milestone": 85
   },
   {
     "name": "omnibox-max-url-matches",