performance tab enable/disable persists with the cookie setting

js/controllers/PerfCtrl.js

@@ -8,7 +8,7 @@ panelApp.filter('sortByTime', function () {
 
 panelApp.controller('PerfCtrl', function PerfCtrl($scope, appContext, filesystem) {
 
-  $scope.enable = false;
+  //$scope.enable = false;
 
   $scope.histogram = [];
   $scope.timeline = [];
@@ -21,23 +21,25 @@ panelApp.controller('PerfCtrl', function PerfCtrl($scope, appContext, filesystem
     filesystem.exportJSON('file.json', $scope.histogram);
   };
 
-  var first = true;
+  appContext.getDebug(function (result) {
-  $scope.$watch('enable', function (newVal, oldVal) {
+    $scope.enable = result;
 
-    // prevent refresh on initial pageload
+    $scope.$watch('enable', function (newVal, oldVal) {
-    if (first) {
+      // prevent refresh on initial pageload
-      first = false;
+      if (first) {
-    } else {
+        first = false;
-      appContext.setDebug(newVal);
+      } else {
-    }
+        appContext.setDebug(newVal);
-    if (newVal) {
+      }
-      //updateTimeline();
+      if (newVal) {
-      updateHistogram();
+        //updateTimeline();
-    }
+        updateHistogram();
+      }
+    });
   });
 
-  $scope.log = false;
+  var first = true;
-  
+
   $scope.$watch('log', function (newVal, oldVal) {
     appContext.setLog(newVal);
     

js/services/appContext.js

@@ -265,6 +265,12 @@ panelApp.factory('appContext', function(chromeExtension) {
       }
     },
 
+    getDebug: function (cb) {
+      chromeExtension.eval(function (window) {
+        return document.cookie.indexOf('__ngDebug=true') != -1;
+      }, cb);
+    },
+
     // takes a bool
     setLog: function (setting) {
       chromeExtension.eval('function (window) {' +