Revert of Clear the login webview when SAML flow is canceled

chrome/browser/resources/gaia_auth_host/authenticator.js

Index: chrome/browser/resources/gaia_auth_host/authenticator.js
diff --git a/chrome/browser/resources/gaia_auth_host/authenticator.js b/chrome/browser/resources/gaia_auth_host/authenticator.js
index 169e35631110132fa5a640d5b87a4a1fbeb00410..55a24f76def03b64ded67f09c3da9dd0b3ff65ca 100644
--- a/chrome/browser/resources/gaia_auth_host/authenticator.js
+++ b/chrome/browser/resources/gaia_auth_host/authenticator.js
@@ -32,7 +32,6 @@
   var SERVICE_ID = 'chromeoslogin';
   var EMBEDDED_SETUP_CHROMEOS_ENDPOINT = 'embedded/setup/chromeos';
   var SAML_REDIRECTION_PATH = 'samlredirect';
-  var BLANK_PAGE_URL = 'about:blank';
 
   /**
    * The source URL parameter for the constrained signin flow.
@@ -197,7 +196,7 @@
    * Reinitializes authentication parameters so that a failed login attempt
    * would not result in an infinite loop.
    */
-  Authenticator.prototype.resetStates = function() {
+  Authenticator.prototype.resetStates_ = function() {
     this.isLoaded_ = false;
     this.email_ = null;
     this.gaiaId_ = null;
@@ -217,20 +216,13 @@
   };
 
   /**
-   * Resets the webview to the blank page.
-   */
-  Authenticator.prototype.resetWebview = function() {
-    this.webview_.src = BLANK_PAGE_URL;
-  };
-
-  /**
    * Loads the authenticator component with the given parameters.
    * @param {AuthMode} authMode Authorization mode.
    * @param {Object} data Parameters for the authorization flow.
    */
   Authenticator.prototype.load = function(authMode, data) {
     this.authMode = authMode;
-    this.resetStates();
+    this.resetStates_();
     // gaiaUrl parameter is used for testing. Once defined, it is never changed.
     this.idpOrigin_ = data.gaiaUrl || IDP_ORIGIN;
     this.continueUrl_ = data.continueUrl || CONTINUE_URL;
@@ -278,7 +270,7 @@
    * Reloads the authenticator component.
    */
   Authenticator.prototype.reload = function() {
-    this.resetStates();
+    this.resetStates_();
     this.webview_.src = this.reloadUrl_;
     this.isLoaded_ = true;
   };
@@ -711,7 +703,7 @@
             gapsCookie: this.newGapsCookie_ || this.gapsCookie_ || '',
           }
         }));
-    this.resetStates();
+    this.resetStates_();
   };
 
   /**
@@ -794,8 +786,6 @@
       this.fireReadyEvent_();
       // Focus webview after dispatching event when webview is already visible.
       this.webview_.focus();
-    } else if (currentUrl == BLANK_PAGE_URL) {
-      this.fireReadyEvent_();
     }
   };