old_contents: var panels = chrome.devtools.panels;
  
  var angularPanel = panels.create(
    "AngularJS",
    "img/angular.png",
    "panel/app.html"
  );
  
  
new_contents: var panels = chrome.devtools.panels;
  
  // The function below is executed in the context of the inspected page.
  
  var getPanelContents = function () {
    if (window.angular && $0) {
      //TODO: can we move this scope export into updateElementProperties
      var scope = window.angular.element($0).scope();
      // Export $scope to the console
      window.$scope = scope;
      return (function (scope) {
        var panelContents = {
          __private__: {}
        };
  
        for (prop in scope) {
          if (scope.hasOwnProperty(prop)) {
            if (prop.substr(0, 2) === '$$') {
              panelContents.__private__[prop] = scope[prop];
            } else {
              panelContents[prop] = scope[prop];
            }
          }
        }
        return panelContents;
      }(scope));
    } else {
      return {};
    }
  };
  
  panels.elements.createSidebarPane(
    "AngularJS Properties",
    function (sidebar) {
      panels.elements.onSelectionChanged.addListener(function updateElementProperties() {
        sidebar.setExpression("(" + getPanelContents.toString() + ")()");
      });
    });
  
  var angularPanel = panels.create(
    "AngularJS",
    "img/angular.png",
    "panel/app.html"
  );
  
subject: add back properties pane