rebaseline_server: return rebaseline results faster, and reload UI page automatically after

gm/rebaseline_server/static/loader.js

 /*
  * Loader:
  * Reads GM result reports written out by results.py, and imports
  * them into $scope.categories and $scope.testData .
  */
 var Loader = angular.module(
     'Loader',
     []
 );
 
@@ skipping 37 matching lines @@
 
     /**
      * On initial page load, load a full dictionary of results.
      * Once the dictionary is loaded, unhide the page elements so they can
      * render the data.
      */
     $http.get("/results/" + $scope.resultsToLoad).success(
       function(data, status, header, config) {
         if (data.header.resultsStillLoading) {
           $scope.loadingMessage =
-              "Server is still loading initial results; will retry at " +
+              "Server is still loading results; will retry at " +
               $scope.localTimeString(data.header.timeNextUpdateAvailable);
           $timeout(
               function(){location.reload();},
               (data.header.timeNextUpdateAvailable * 1000) - new Date().getTime());
         } else {
           $scope.loadingMessage = "Processing data, please wait...";
 
           $scope.header = data.header;
           $scope.categories = data.categories;
           $scope.testData = data.testData;
@@ skipping 432 matching lines @@
         var itemIndicesToMove = [];
         for (var i = 0; i < testDataSubset.length; i++) {
           itemIndicesToMove.push(testDataSubset[i].index);
         }
         $scope.moveItemsToTab(itemIndicesToMove,
                               "HackToMakeSureThisItemDisappears");
         $scope.updateResults();
         alert("New baselines submitted successfully!\n\n" +
             "You still need to commit the updated expectations files on " +
             "the server side to the Skia repo.\n\n" +
-            "Also: in order to see the complete updated data, or to submit " +
-            "more baselines, you will need to reload your client.");
-        $scope.submitPending = false;
+            "When you click OK, your web UI will reload; after that " +
+            "completes, you will see the updated data (once the server has " +
+            "finished loading the update results into memory!) and you can " +
+            "submit more baselines if you want.");
+        // I don't know why, but if I just call reload() here it doesn't work.
+        // Making a timer call it fixes the problem.
+        $timeout(function(){location.reload();}, 1);
       }).error(function(data, status, headers, config) {
         alert("There was an error submitting your baselines.\n\n" +
             "Please see server-side log for details.");
         $scope.submitPending = false;
       });
     }
 
 
     //
     // Operations we use to mimic Set semantics, in such a way that
@@ skipping 86 matching lines @@
      *
      * @param secondsPastEpoch (numeric): seconds past epoch in UTC
      */
     $scope.localTimeString = function(secondsPastEpoch) {
       var d = new Date(secondsPastEpoch * 1000);
       return d.toString();
     }
 
   }
 );