Bug 1228090 - Update traacking protection telemetry histogram to represent user setting. r=mfinkle

--HG--
extra : commitid : ID0STPnNMfB
extra : rebase_source : 205146246a35eee158845fec4b788edd7018dafa

mobile/android/chrome/content/browser.js

@@ -594,10 +594,7 @@ var BrowserApp = {
 
       if (AppConstants.NIGHTLY_BUILD) {
         InitLater(() => ShumwayUtils.init(), window, "ShumwayUtils");
-        InitLater(() => Telemetry.addData("TRACKING_PROTECTION_ENABLED",
-            Services.prefs.getBoolPref("privacy.trackingprotection.enabled")));
-        InitLater(() => Telemetry.addData("TRACKING_PROTECTION_PBM_DISABLED",
-            !Services.prefs.getBoolPref("privacy.trackingprotection.pbmode.enabled")));
+        InitLater(() => Telemetry.addData("FENNEC_TRACKING_PROTECTION_STATE", parseInt(BrowserApp.getTrackingProtectionState())));
         InitLater(() => WebcompatReporter.init());
       }
 
@@ -1448,6 +1445,20 @@ var BrowserApp = {
   PREF_TRACKING_PROTECTION_ENABLED_PB: "1",
   PREF_TRACKING_PROTECTION_DISABLED: "0",
 
+  /**
+   * Returns the current state of the tracking protection pref.
+   * (0 = Disabled, 1 = Enabled in PB, 2 = Enabled)
+   */
+  getTrackingProtectionState: function() {
+    if (Services.prefs.getBoolPref("privacy.trackingprotection.enabled")) {
+      return this.PREF_TRACKING_PROTECTION_ENABLED;
+    }
+    if (Services.prefs.getBoolPref("privacy.trackingprotection.pbmode.enabled")) {
+      return this.PREF_TRACKING_PROTECTION_ENABLED_PB;
+    }
+    return this.PREF_TRACKING_PROTECTION_DISABLED;
+  },
+
   handlePreferencesRequest: function handlePreferencesRequest(aRequestId,
                                                               aPrefNames,
                                                               aListen) {
@@ -1488,13 +1499,7 @@ var BrowserApp = {
           continue;
         case "privacy.trackingprotection.state": {
           pref.type = "string";
-          if (Services.prefs.getBoolPref("privacy.trackingprotection.enabled")) {
-            pref.value = this.PREF_TRACKING_PROTECTION_ENABLED;
-          } else if (Services.prefs.getBoolPref("privacy.trackingprotection.pbmode.enabled")) {
-            pref.value = this.PREF_TRACKING_PROTECTION_ENABLED_PB;
-          } else {
-            pref.value = this.PREF_TRACKING_PROTECTION_DISABLED;
-          }
+          pref.value = this.getTrackingProtectionState();
           prefs.push(pref);
           continue;
         }

toolkit/components/telemetry/Histograms.json

@@ -8472,6 +8472,14 @@
     "kind": "boolean",
     "description": "Is the tracking protection in private browsing mode disabled?"
   },
+  "FENNEC_TRACKING_PROTECTION_STATE": {
+    "expires_in_version": "60",
+    "kind": "enumerated",
+    "n_values": 5,
+    "description": "The state of the user-visible tracking protection setting (0 = Disabled, 1 = Enabled in PB, 2 = Enabled)",
+    "alert_emails": ["mleibovic@mozilla.com"],
+    "bug_numbers": [1228090]
+  },
   "TRACKING_PROTECTION_SHIELD": {
     "expires_in_version": "never",
     "kind": "enumerated",