Bug 1585808 - Add UTM parameters to the "Learn more about this breach" link in breach notifications. r=MattN

Differential Revision: https://phabricator.services.mozilla.com/D48597

--HG--
extra : moz-landing-system : lando

browser/components/aboutlogins/LoginBreaches.jsm

@@ -116,6 +116,8 @@ this.LoginBreaches = {
         }
 
         let breachAlertURL = new URL(breach.Name, baseBreachAlertURL);
+        breachAlertURL.searchParams.set("utm_campaign", "Desktop");
+        breachAlertURL.searchParams.set("utm_medium", "InProduct");
         breach.breachAlertURL = breachAlertURL.href;
         breachesByLoginGUID.set(login.guid, breach);
       }

browser/components/aboutlogins/tests/unit/test_getPotentialBreachesByLoginGUID.js

@@ -121,7 +121,6 @@ add_task(async function test_notBreachedLogin() {
 
 add_task(async function test_breachedLogin() {
   Services.logins.addLogin(BREACHED_LOGIN);
-
   const breachesByLoginGUID = await LoginBreaches.getPotentialBreachesByLoginGUID(
     [NOT_BREACHED_LOGIN, BREACHED_LOGIN],
     TEST_BREACHES
@@ -131,6 +130,11 @@ add_task(async function test_breachedLogin() {
     1,
     "Should be 1 breached login: " + BREACHED_LOGIN.origin
   );
+  Assert.strictEqual(
+    breachesByLoginGUID.get(BREACHED_LOGIN.guid).breachAlertURL,
+    "https://monitor.firefox.com/breach-details/Breached?utm_campaign=Desktop&utm_medium=InProduct",
+    "Breach alert link should be equal to the breachAlertURL"
+  );
 });
 
 add_task(async function test_notBreachedSubdomain() {