Bug 1417473 - Enable the hybrid content telemetry API. r=chutten

MozReview-Commit-ID: Cjsu10fgKtq

--HG--
extra : rebase_source : d507a9fb40cb18726b0ad4c8aeed86b3fafc746e

browser/app/profile/firefox.js

@@ -1523,6 +1523,8 @@ pref("toolkit.telemetry.newProfilePing.enabled", true);
 pref("toolkit.telemetry.updatePing.enabled", true);
 // Enables sending 'bhr' pings when the browser hangs.
 pref("toolkit.telemetry.bhrPing.enabled", true);
+// Enables using Hybrid Content Telemetry from Mozilla privileged pages.
+pref("toolkit.telemetry.hybridContent.enabled", true);
 
 // Telemetry experiments settings.
 pref("experiments.enabled", true);