Special check on Supervised User creation flow added to prevent misleading shelf alignment.

ash/session/session_state_delegate.h

Index: ash/session/session_state_delegate.h
diff --git a/ash/session/session_state_delegate.h b/ash/session/session_state_delegate.h
index e3b2dc4e6960f354640464d2f27607fac452d506..6a81ae9cb2ddbf04b71b6237b0d14c7c8130c0bb 100644
--- a/ash/session/session_state_delegate.h
+++ b/ash/session/session_state_delegate.h
@@ -120,6 +120,11 @@ class ASH_EXPORT SessionStateDelegate {
   // session.
   virtual bool IsUserSessionBlocked() const = 0;
 
+  // Returns true if at any Supervised User creation screen.
+  virtual bool IsInSupervisedUserCreationFlow() const = 0;
+
+  virtual void SetIsInSupervisedUserCreationFlow(bool is_in_flow) = 0;
+
   // Returns current session state.
   virtual SessionState GetSessionState() const = 0;