cros: Update SAML flow.

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

+/* Copyright 2013 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.
+ */
+
+.gaia-input {
+  border: 1px solid #d9d9d9;
+  border-radius: 1px;
+  border-top: 1px solid #c0c0c0;
+  font-size: 15px;
+  height: 32px;
+  margin: 0;
+  padding: 0 8px;
+  width: 100%;
+}
+
+.gaia-input:focus {
+  border: 1px solid rgb(77, 144, 254);
+  box-shadow: inset 0 1px 2px rgba(0,0,0,0.3);
+  outline: none;
+}
+
+.blue-button {
+  background-color: rgb(77, 144, 254);
+  background-image: -webkit-linear-gradient(top,
+                                            rgb(77, 144, 254),
+                                            rgb(71, 135, 237));
+  border: 1px solid rgb(48, 121, 237);
+  border-radius: 2px;
+  color: #fff;
+  font-size: 13px;
+  font-weight: bold;
+  height: 32px;
+  margin: 0 1.5em 1.2em 0;
+  text-shadow: 0 1px rgba(0, 0, 0, 0.1);
+}
+
+.blue-button:hover {
+  background-color: rgb(53, 122, 232);
+  background-image: -webkit-linear-gradient(top,
+                                            rgb(77, 144, 254),
+                                            rgb(53, 122, 232));
+  border: 1px solid rgb(47, 91, 183);
+  text-shadow: 0 1px rgba(0, 0, 0, 0.3);
+}
+
+.blue-button:focus {
+  -webkit-box-shadow: inset 0 0 0 1px #fff;
+}
+
+.blue-button:focus:hover {
+  -webkit-box-shadow: inset 0 0 0 1px #fff, 0 1px 1px rgba(0, 0, 0, 0.1);
+}
+