Revert of Clear the login webview when SAML flow is canceled

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

Index: chrome/browser/resources/chromeos/login/screen_gaia_signin.js
diff --git a/chrome/browser/resources/chromeos/login/screen_gaia_signin.js b/chrome/browser/resources/chromeos/login/screen_gaia_signin.js
index e61d4f43d3d7c2bc4af7c8e80b35002feba3a63c..112edf5bccbc728f0f1ef879829562146c7932fe 100644
--- a/chrome/browser/resources/chromeos/login/screen_gaia_signin.js
+++ b/chrome/browser/resources/chromeos/login/screen_gaia_signin.js
@@ -557,13 +557,6 @@
      * @private
      */
     loadAuthExtension: function(data) {
-      // Redirect the webview to the blank page in order to stop the SAML IdP
-      // page from working in a background (see crbug.com/613245).
-      if (this.screenMode_ == ScreenMode.DEFAULT &&
-          data.screenMode != ScreenMode.DEFAULT) {
-        this.gaiaAuthHost_.resetWebview();
-      }
-
       this.screenMode = data.screenMode;
       this.email = '';
       this.authCompleted_ = false;
@@ -930,7 +923,7 @@
      */
     reset: function(takeFocus, forceOnline) {
       // Reload and show the sign-in UI if needed.
-      this.gaiaAuthHost_.resetStates();
+      this.gaiaAuthHost_.resetStates_();
       if (takeFocus) {
         if (!forceOnline && this.isOffline()) {
           // Show 'Cancel' button to allow user to return to the main screen