Reload instead of restart to apply plugin changes

Summary:
Now full restart is not required for applying plugin changes (install/uninstall/update). So this diff changes the behavior to use reload instead of restart in Plugin Manager and Auto Update Manager. It is much faster than full restart.

Changelog: faster reload after plugin install/uninstall/update.

Reviewed By: jknoxville

Differential Revision: D23706701

fbshipit-source-id: b2dcaf7768a5d47b3c967c17e090fa74884b3850

desktop/app/src/chrome/plugin-manager/PluginInstaller.tsx

@@ -28,7 +28,7 @@ import {
 import React, {useCallback, useState, useEffect} from 'react';
 import {List} from 'immutable';
 import {reportPlatformFailures, reportUsage} from '../../utils/metrics';
-import restartFlipper from '../../utils/restartFlipper';
+import reloadFlipper from '../../utils/reloadFlipper';
 import {registerInstalledPlugins} from '../../reducers/pluginManager';
 import {
   UpdateResult,
@@ -124,7 +124,7 @@ const PluginInstaller = function ({
 
   const rows = useNPMSearch(query, onInstall, installedPlugins);
   const restartApp = useCallback(() => {
-    restartFlipper();
+    reloadFlipper();
   }, []);
 
   return (
@@ -132,8 +132,7 @@ const PluginInstaller = function ({
       <Container>
         {restartRequired && (
           <RestartBar onClick={restartApp}>
-            To activate this plugin, Flipper needs to restart. Click here to
+            To apply the changes, Flipper needs to reload. Click here to reload!
-            restart!
           </RestartBar>
         )}
         <Toolbar>

desktop/app/src/utils/reloadFlipper.tsx

@@ -0,0 +1,11 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+import {remote} from 'electron';
+export default () => remote.getCurrentWindow().reload();