Disabled ARC for ephemeral users.

components/user_manager/user_manager.h

Index: components/user_manager/user_manager.h
diff --git a/components/user_manager/user_manager.h b/components/user_manager/user_manager.h
index 601eb41eb2d1f7996dde4e755a8f77fa38d43a68..e79087351147da96469dcd3aadacc48a89f16a11 100644
--- a/components/user_manager/user_manager.h
+++ b/components/user_manager/user_manager.h
@@ -269,6 +269,10 @@ class USER_MANAGER_EXPORT UserManager {
   // display email) is ephemeral.
   virtual bool IsCurrentUserNonCryptohomeDataEphemeral() const = 0;
 
+  // Returns true if data stored or cached for the current user inside that
+  // user's cryptohome is ephemeral.
+  virtual bool IsCurrentUserCryptohomeDataEphemeral() const = 0;
+
   // Returns true if the current user's session can be locked (i.e. the user has
   // a password with which to unlock the session).
   virtual bool CanCurrentUserLock() const = 0;
@@ -309,6 +313,9 @@ class USER_MANAGER_EXPORT UserManager {
   virtual bool IsUserNonCryptohomeDataEphemeral(
       const AccountId& account_id) const = 0;
 
+  virtual bool IsUserCryptohomeDataEphemeral(
+      const AccountId& account_id) const = 0;
+
   virtual void AddObserver(Observer* obs) = 0;
   virtual void RemoveObserver(Observer* obs) = 0;