Add OpenDNS DoH globally to the settings UI

Was previously an autoupgrade-only provider.

Test: Manually confirmed UI change for multiple regions.
Fixed: 1082456
Change-Id: Ie9241d6f468b7175fd3b10cfaf56f3a16cdfc183
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2427352Reviewed-by: Dan McArdle <dmcardle@chromium.org>
Commit-Queue: Eric Orth <ericorth@chromium.org>
Cr-Commit-Position: refs/heads/master@{#810293}

net/dns/public/doh_provider_entry.cc

@@ -134,13 +134,14 @@ const DohProviderEntry::List& DohProviderEntry::GetList() {
           "https://nextdns.io/privacy" /* privacy_policy */,
           false /* display_globally */, {"US"} /* display_countries */),
       new DohProviderEntry(
-          "OpenDNS", base::nullopt /* provider_id_for_histogram */,
+          "OpenDNS", DohProviderIdForHistogram::kOpenDns,
           {"208.67.222.222", "208.67.220.220", "2620:119:35::35",
            "2620:119:53::53"},
           {""} /* dns_over_tls_hostnames */,
-          "https://doh.opendns.com/dns-query{?dns}", "" /* ui_name */,
-          "" /* privacy_policy */, false /* display_globally */,
-          {} /* display_countries */),
+          "https://doh.opendns.com/dns-query{?dns}", "OpenDNS" /* ui_name */,
+          "https://www.cisco.com/c/en/us/about/legal/"
+          "privacy-full.html" /* privacy_policy */,
+          true /* display_globally */, {} /* display_countries */),
       new DohProviderEntry(
           "OpenDNSFamily", base::nullopt /* provider_id_for_histogram */,
           {"208.67.222.123", "208.67.220.123", "2620:119:35::123",

net/dns/public/doh_provider_entry.h

@@ -28,7 +28,8 @@ enum class DohProviderIdForHistogram {
   kDnsSb = 6,
   kCznic = 7,
   kNextDns = 8,
-  kMaxValue = kNextDns,
+  kOpenDns = 9,
+  kMaxValue = kOpenDns,
 };
 
 // Represents insecure DNS, DoT, and DoH services run by the same provider.

tools/metrics/histograms/enums.xml

@@ -17418,6 +17418,7 @@ Called by update_document_policy_enum.py.-->
   <int value="6" label="DNS_SB"/>
   <int value="7" label="CZ_NIC"/>
   <int value="8" label="NEXT_DNS"/>
+  <int value="9" label="OPEN_DNS"/>
 </enum>
 
 <enum name="DomainBoundCerts.DBLoadStatus">