Bug 1858545: put macOS attribution reporting behind a Nimbus flag r=nalexander

Differential Revision: https://phabricator.services.mozilla.com/D190986

Author: bhearsum

browser/app/profile/firefox.js

@@ -2863,3 +2863,8 @@ pref("cookiebanners.ui.desktop.cfrVariant", 0);
 // Whether the reset private browsing panel should ask for confirmation before
 // performing the clear action.
 pref("browser.privatebrowsing.resetPBM.showConfirmationDialog", true);
+
+// bug 1858545: Temporary pref to enable a staged rollout of macOS attribution Telemetry
+#ifdef XP_MACOSX
+  pref("browser.attribution.macos.enabled", false);
+#endif

browser/components/attribution/AttributionCode.sys.mjs

@@ -16,6 +16,7 @@ import { AppConstants } from "resource://gre/modules/AppConstants.sys.mjs";
 const lazy = {};
 ChromeUtils.defineESModuleGetters(lazy, {
   MacAttribution: "resource:///modules/MacAttribution.sys.mjs",
+  NimbusFeatures: "resource://nimbus/ExperimentAPI.sys.mjs",
 });
 ChromeUtils.defineLazyGetter(lazy, "log", () => {
   let { ConsoleAPI } = ChromeUtils.importESModule(
@@ -230,6 +231,17 @@ export var AttributionCode = {
       return gCachedAttrData;
     }
 
+    // This is a temporary block while we rollout macOS attribution.
+    if (
+      AppConstants.platform == "macosx" &&
+      !lazy.NimbusFeatures.attribution.getVariable("macosEnabled")
+    ) {
+      lazy.log.debug(
+        "getAttrDataSync: macOS attribution disabled by nimbus; skipping"
+      );
+      return {};
+    }
+
     gCachedAttrData = {};
     let attributionFile = this.attributionFile;
     if (!attributionFile) {

browser/components/attribution/test/browser/browser.toml

@@ -1,5 +1,6 @@
 [DEFAULT]
 support-files = ["head.js"]
+prefs = ["browser.attribution.macos.enabled=true"]
 
 ["browser_AttributionCode_Mac_telemetry.js"]
 skip-if = ["toolkit != 'cocoa'"] # macOS only telemetry.

browser/components/attribution/test/xpcshell/xpcshell.ini

@@ -2,6 +2,8 @@
 firefox-appdir = browser
 skip-if = (os != "win" && toolkit != "cocoa") # Only available on Windows and macOS
 head = head.js
+prefs =
+  browser.attribution.macos.enabled=true
 
 [test_AttributionCode.js]
 [test_MacAttribution.js]

browser/components/newtab/test/browser/browser.toml

@@ -22,6 +22,7 @@ prefs = [
   "browser.newtabpage.activity-stream.feeds.section.topstories.options={\"provider_name\":\"\"}",
   "messaging-system.log=all",
   "intl.multilingual.aboutWelcome.languageMismatchEnabled=false",
+  "browser.attribution.macos.enabled=true",
 ]
 
 ["browser_aboutwelcome_attribution.js"]

browser/components/newtab/test/xpcshell/xpcshell.ini

@@ -5,6 +5,7 @@ skip-if = toolkit == 'android' # bug 1730213
 prefs =
   browser.startup.homepage.abouthome_cache.enabled=true
   browser.startup.homepage.abouthome_cache.testing=true
+  browser.attribution.macos.enabled=true
 
 [test_AboutHomeStartupCacheChild.js]
 [test_AboutHomeStartupCacheWorker.js]

toolkit/components/nimbus/FeatureManifest.yaml

@@ -1908,3 +1908,12 @@ feltPrivacy:
       setPref: browser.privatebrowsing.resetPBM.enabled
       description: >-
         Enables the reset PBM feature button and confirmation panel.
+
+attribution:
+  description: Prefs related to install attribution
+  hasExposure: false
+  variables:
+    macosEnabled:
+      type: boolean
+      description: Whether or not macOS attribution data will be processed and sent in Telemetry
+      fallbackPref: browser.attribution.macos.enabled

toolkit/components/telemetry/tests/unit/xpcshell.ini

@@ -19,6 +19,8 @@ support-files =
 generated-files =
   system.xpi
   restartless.xpi
+prefs =
+  browser.attribution.macos.enabled=true
 
 [test_UserInteraction.js]
 [test_UserInteraction_annotations.js]