Fast app reinstall: The initial focus should be on the install button

Bug: 881083
Change-Id: Ia8aa5753b1170983b0081c7de85c4b197743f7a6
Reviewed-on: https://chromium-review.googlesource.com/1253066
Commit-Queue: Yue Cen <rsgingerrs@chromium.org>
Reviewed-by: Wenzhao (Colin) Zang <wzang@chromium.org>
Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#595583}

chrome/browser/resources/chromeos/login/recommend_apps.html

@@ -33,11 +33,11 @@
           <div>[[i18nDynamic(locale, 'recommendAppsSkip')]]</div>
         </oobe-text-button>
         <oobe-next-button id="recommend-apps-install-button"
-          on-tap="onInstall_" class="focus-on-show" inverse>
+            on-tap="onInstall_" inverse>
           <div>[[i18nDynamic(locale, 'recommendAppsInstall')]]</div>
         </oobe-next-button>
         <oobe-text-button id="recommend-apps-retry-button" border
-                          on-tap="onRetry_">
+            on-tap="onRetry_">
           <div>[[i18nDynamic(locale, 'recommendAppsRetry')]]</div>
         </oobe-text-button>
       </div>

chrome/browser/resources/chromeos/login/screen_recommend_apps.js

@@ -117,6 +117,7 @@ login.createScreen('RecommendAppsScreen', 'recommend-apps', function() {
       this.removeClass_('recommend-apps-loading');
       this.removeClass_('error');
       this.addClass_('recommend-apps-loaded');
+      this.getElement_('recommend-apps-install-button').focus();
     },
 
     /**