ChromeOS OOBE: Fix EULA Back button.

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

Index: chrome/browser/resources/chromeos/login/oobe_dialog.js
diff --git a/chrome/browser/resources/chromeos/login/oobe_dialog.js b/chrome/browser/resources/chromeos/login/oobe_dialog.js
index ab3be0620f8b3505afc2cb202b6953ee4c75f553..6482a525d55aff47a0942f46978d7ac95bde3af9 100644
--- a/chrome/browser/resources/chromeos/login/oobe_dialog.js
+++ b/chrome/browser/resources/chromeos/login/oobe_dialog.js
@@ -24,7 +24,15 @@ Polymer({
     },
   },
 
-  focus: function() {},
+  focus: function() {
+    /* When Network Selection Dialog is shown because user pressed "Back"
+       button on EULA screen display_manager does not inform this dialog that
+       it is shown. It ouly focuses this dialog.
+       So this emulates show().
+       TODO (alemate): fix this once event flow is updated.

[achuithb, 2017/02/20 01:08:16]

Is there a bug?

[Alexander Alekseev, 2017/02/21 21:55:44]

It should probably be called "remove old OOBE code", but we don't have any issue
like this yet.

+    */
+    this.show();
+  },
 
   /**
     * This is called from oobe_welcome when this dialog is shown.