UI rework for reset options including Rollback.

ui/login/display_manager.js

Index: ui/login/display_manager.js
diff --git a/ui/login/display_manager.js b/ui/login/display_manager.js
index d2c0b6f8d99e0cf7f65fd513816301ffbfde1d35..8f8c60d071020564d3424630d8543b48199ff925 100644
--- a/ui/login/display_manager.js
+++ b/ui/login/display_manager.js
@@ -46,10 +46,6 @@
 /** @const */ var ACCELERATOR_APP_LAUNCH_BAILOUT = 'app_launch_bailout';
 /** @const */ var ACCELERATOR_APP_LAUNCH_NETWORK_CONFIG =
     'app_launch_network_config';
-/** @const */ var ACCELERATOR_SHOW_ROLLBACK_ON_RESET =
-    'show_rollback_on_reset_screen';
-/** @const */ var ACCELERATOR_HIDE_ROLLBACK_ON_RESET =
-    'hide_rollback_on_reset_screen';
 
 /* Signin UI state constants. Used to control header bar UI. */
 /** @const */ var SIGNIN_UI_STATE = {
@@ -357,7 +353,9 @@ cr.define('cr.ui.login', function() {
         if (this.allowToggleVersion_)
           $('version-labels').hidden = !$('version-labels').hidden;
       } else if (name == ACCELERATOR_RESET) {
-        if (RESET_AVAILABLE_SCREEN_GROUP.indexOf(currentStepId) != -1)
+        if (currentStepId == SCREEN_OOBE_RESET)
+          chrome.send('toggleRollbackOnResetScreen');
+        else if (RESET_AVAILABLE_SCREEN_GROUP.indexOf(currentStepId) != -1)
           chrome.send('toggleResetScreen');
       } else if (name == ACCELERATOR_DEVICE_REQUISITION) {
         if (this.isOobeUI())
@@ -376,12 +374,6 @@ cr.define('cr.ui.login', function() {
       } else if (name == ACCELERATOR_APP_LAUNCH_NETWORK_CONFIG) {
         if (currentStepId == SCREEN_APP_LAUNCH_SPLASH)
           chrome.send('networkConfigRequest');
-      } else if (name == ACCELERATOR_SHOW_ROLLBACK_ON_RESET) {
-        if (currentStepId == SCREEN_OOBE_RESET)
-          chrome.send('showRollbackOnResetScreen');
-      } else if (name == ACCELERATOR_HIDE_ROLLBACK_ON_RESET) {
-        if (currentStepId == SCREEN_OOBE_RESET)
-          chrome.send('hideRollbackOnResetScreen');
       }
 
       if (!this.forceKeyboardFlow_)