Restart Chrome if per session flags have been specified on ChromeOS.

chromeos/dbus/session_manager_client.h

Index: chromeos/dbus/session_manager_client.h
diff --git a/chromeos/dbus/session_manager_client.h b/chromeos/dbus/session_manager_client.h
index 70ca3f4c7cc2729b50570f1a253cc582a9817442..ca1070736f093106da950396bac5d11a6dbc699d 100644
--- a/chromeos/dbus/session_manager_client.h
+++ b/chromeos/dbus/session_manager_client.h
@@ -15,7 +15,7 @@
 
 namespace dbus {
 class Bus;
-}  // namespace
+}  // namespace dbus
 
 namespace chromeos {
 
@@ -158,6 +158,11 @@ class CHROMEOS_EXPORT SessionManagerClient {
       const std::string& policy_blob,
       const StorePolicyCallback& callback) = 0;
 
+  // Sets the flags to be applied next time by the session manager when Chrome
+  // is restarted inside an already started session for a particular user.
+  virtual void SetFlagsForUser(const std::string& username,
+                               const std::vector<std::string>& flags) = 0;
+
   // Creates the instance.
   static SessionManagerClient* Create(DBusClientImplementationType type,
                                       dbus::Bus* bus);