UI rework for reset options including Rollback.

chrome/browser/resources/chromeos/login/oobe_popup_overlay.css

Index: chrome/browser/resources/chromeos/login/oobe_popup_overlay.css
diff --git a/chrome/browser/resources/chromeos/login/oobe_popup_overlay.css b/chrome/browser/resources/chromeos/login/oobe_popup_overlay.css
new file mode 100644
index 0000000000000000000000000000000000000000..57a6bf4daadaf5f08f82076bc5ab68cbde5ba8dc
--- /dev/null
+++ b/chrome/browser/resources/chromeos/login/oobe_popup_overlay.css
@@ -0,0 +1,46 @@
+/* Copyright 2014 The Chromium Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+.popup-overlay {
+  -webkit-transition: 250ms opacity;
+  align-items: center;
+  background: rgba(255, 255, 255, .75);
+  bottom: 0;
+  display: flex;
+  justify-content: center;
+  left: 0;
+  padding: 20px;
+  position: fixed;
+  right: 0;
+  top: 0;
+  z-index: 5;
+}
+
+.oobe-popup {
+  background: white;
+  border: 1px solid rgb(188, 193, 208);
+  border-radius: 2px;
+  box-shadow: 0 5px 80px #505050;
+  min-height: 250px;
+  position: relative;
+  width: 460px;
+  z-index: 10;
+}
+
+.oobe-popup h1 {
+  -webkit-padding-end: 24px;
+  -webkit-user-select: none;
+  background: linear-gradient(white, #F8F8F8);
+  color: rgb(83, 99, 125);
+  font-size: 105%;
+  font-weight: bold;
+  margin: 0;
+  padding: 10px 15px 8px 15px;
+  text-shadow: white 0 1px 2px;
+}
+
+.popup-content-area {
+  padding: 20px 20px 60px 20px;
+}