Create HTTP-based GM results viewer.

gm/rebaseline_server/static/loader.js

+/*
+ * Loader:
+ * Reads GM result reports written out by results_loader.py, and imports
+ * their data into $scope.results .
+ */
+var Loader = angular.module(
+    'Loader',
+    []
+);
+Loader.controller(
+  'Loader.Controller',
+  function($scope, $http) {
+    $scope.changeResultType = function() {
+      $http.get("/results/" + $scope.resultType).then(
+        function(response) {
+          $scope.results = response.data;
+          $scope.sortColumn = 'test';
+        }
+      );
+    }
+  }
+);