Bug 1386959 - [Form Autofill] Add probe for form autofill availability. r=francois,lchang

MozReview-Commit-ID: KPOBxmHOiuK

--HG--
extra : rebase_source : d56176249f8b5417151a4953b080ae2a8d2acd81

browser/extensions/formautofill/bootstrap.js

@@ -68,6 +68,7 @@ function startup(data) {
     // reset the sync related prefs incase the feature was previously available
     // but isn't now.
     Services.prefs.clearUserPref("services.sync.engine.addresses.available");
+    Services.telemetry.scalarSet("formautofill.availability", false);
     return;
   }
 
@@ -89,6 +90,7 @@ function startup(data) {
   // When it's true, "element.autocomplete" will return tokens we currently
   // support -- otherwise it'll return an empty string.
   Services.prefs.setBoolPref("dom.forms.autocomplete.formautofill", true);
+  Services.telemetry.scalarSet("formautofill.availability", true);
 
   // This pref determines whether the "addresses" sync engine is available
   // (ie, whether it is shown in any UI etc) - it *does not* determine whether

toolkit/components/telemetry/Scalars.yaml

@@ -786,6 +786,21 @@ gfx.advanced.layers:
       - 'main'
 
 # The following section contains the form autofill related scalars.
+formautofill:
+  availability:
+    bug_numbers:
+      - 1386959
+    description: A boolean sent once per session to represent whether the formautofill is available in the build
+    expires: never
+    kind: boolean
+    notification_emails:
+      - autofill@lists.mozilla.org
+      - jcheng@mozilla.com
+      - chsiang@mozilla.com
+    release_channel_collection: opt-out
+    record_in_processes:
+      - 'main'
+
 formautofill.addresses:
   fill_type_manual:
     bug_numbers: