Bug 1126559 - don't allow resetting when that is not possible, r=MattN

MozReview-Commit-ID: F0m70XKQtT7

--HG--
extra : rebase_source : 6c9ba72a2585a49afb432af6474b9ef970fc9349

browser/components/uitour/UITour.jsm

@@ -622,7 +622,9 @@ this.UITour = {
 
       case "resetFirefox": {
         // Open a reset profile dialog window.
-        ResetProfile.openConfirmationDialog(window);
+        if (ResetProfile.resetSupported()) {
+          ResetProfile.openConfirmationDialog(window);
+        }
         break;
       }
 
@@ -1939,6 +1941,9 @@ this.UITour = {
           setup: Services.prefs.prefHasUserValue("services.sync.username"),
         });
         break;
+      case "canReset":
+        this.sendPageCallback(aMessageManager, aCallbackID, ResetProfile.resetSupported());
+        break;
       default:
         log.error("getConfiguration: Unknown configuration requested: " + aConfiguration);
         break;

browser/components/uitour/test/browser_UITour_resetProfile.js

@@ -8,6 +8,8 @@ add_task(setup_UITourTest);
 
 // Test that a reset profile dialog appears when "resetFirefox" event is triggered
 add_UITour_task(function* test_resetFirefox() {
+  let canReset = yield getConfigurationPromise("canReset");
+  ok(!canReset, "Shouldn't be able to reset from mochitest's temporary profile.");
   let dialogPromise = new Promise((resolve) => {
     let winWatcher = Cc["@mozilla.org/embedcomp/window-watcher;1"].
                      getService(Ci.nsIWindowWatcher);
@@ -28,7 +30,19 @@ add_UITour_task(function* test_resetFirefox() {
       }
     });
   });
+
+  // make reset possible.
+  let profileService = Cc["@mozilla.org/toolkit/profile-service;1"].
+                       getService(Ci.nsIToolkitProfileService);
+  let currentProfileDir = Services.dirsvc.get("ProfD", Ci.nsIFile);
+  let profileName = "mochitest-test-profile-temp-" + Date.now();
+  let tempProfile = profileService.createProfile(currentProfileDir, profileName);
+  canReset = yield getConfigurationPromise("canReset");
+  ok(canReset, "Should be able to reset from mochitest's temporary profile once it's in the profile manager.");
   yield gContentAPI.resetFirefox();
   yield dialogPromise;
+  tempProfile.remove(false);
+  canReset = yield getConfigurationPromise("canReset");
+  ok(!canReset, "Shouldn't be able to reset from mochitest's temporary profile once removed from the profile manager.");
 });