cros: Add SAML redirect banner for enrollment.

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

Index: chrome/browser/resources/chromeos/login/oobe_screen_oauth_enrollment.js
diff --git a/chrome/browser/resources/chromeos/login/oobe_screen_oauth_enrollment.js b/chrome/browser/resources/chromeos/login/oobe_screen_oauth_enrollment.js
index 38492061cc006a8e0d2dbcd9ea7990b89c52e0a9..582993789f6fe569e3cb1ef28280f4c0f0761443 100644
--- a/chrome/browser/resources/chromeos/login/oobe_screen_oauth_enrollment.js
+++ b/chrome/browser/resources/chromeos/login/oobe_screen_oauth_enrollment.js
@@ -181,6 +181,7 @@ login.createScreen('OAuthEnrollmentScreen', 'oauth-enrollment', function() {
         $('oauth-enroll-cancel-button').textContent =
             loadTimeData.getString('oauthEnrollCancelAutoEnrollmentGoBack');
       }
+      this.classList.toggle('saml', false);
 
       this.showStep(STEP_SIGNIN);
     },
@@ -330,6 +331,15 @@ login.createScreen('OAuthEnrollmentScreen', 'oauth-enrollment', function() {
         chrome.send('oauthEnrollRetrieveAuthenticatedUserEmail',
                     [msg.attemptToken]);
       }
+
+      if (msg.method == 'authPageLoaded') {
+        if (msg.isSAML) {
+          $('oauth-saml-notice-message').textContent = loadTimeData.getStringF(
+              'samlNotice',
+              msg.domain);
+        }
+        this.classList.toggle('saml', msg.isSAML);
+      }
     }
   };
 });