[CrOS multi-profiles] Restore user sessions after crash

chromeos/dbus/fake_session_manager_client.cc

Index: chromeos/dbus/fake_session_manager_client.cc
diff --git a/chromeos/dbus/fake_session_manager_client.cc b/chromeos/dbus/fake_session_manager_client.cc
index e979c009be7b9577017d2b069846e883832078ba..6e5c162204d41227abec77adb8fa0acc55230a9d 100644
--- a/chromeos/dbus/fake_session_manager_client.cc
+++ b/chromeos/dbus/fake_session_manager_client.cc
@@ -8,6 +8,7 @@
 #include "base/location.h"
 #include "base/message_loop.h"
 #include "base/string_util.h"
+#include "chromeos/dbus/cryptohome_client.h"
 
 namespace chromeos {
 
@@ -47,6 +48,10 @@ void FakeSessionManagerClient::RestartEntd() {
 }
 
 void FakeSessionManagerClient::StartSession(const std::string& user_email) {
+  DCHECK_EQ(0UL, user_sessions_.count(user_email));
+  std::string user_id_hash =
+      CryptohomeClient::GetStubSanitizedUsername(user_email);
+  user_sessions_[user_email] = user_id_hash;
 }
 
 void FakeSessionManagerClient::StopSession() {
@@ -71,10 +76,9 @@ void FakeSessionManagerClient::NotifyLockScreenDismissed() {
 
 void FakeSessionManagerClient::RetrieveActiveSessions(
       const ActiveSessionsCallback& callback) {
-  ActiveSessionsMap sessions;
   MessageLoop::current()->PostTask(FROM_HERE,
                                    base::Bind(callback,
-                                              sessions,
+                                              user_sessions_,
                                               true));
 }