mojo api for view based lockscreen

ash/mus/window_manager_application.cc

Index: ash/mus/window_manager_application.cc
diff --git a/ash/mus/window_manager_application.cc b/ash/mus/window_manager_application.cc
index 2594871853f8089ff788e686d2a708825236d9f4..aba1d54f97cd837b0bf7775482bc9b9c7621e1e7 100644
--- a/ash/mus/window_manager_application.cc
+++ b/ash/mus/window_manager_application.cc
@@ -17,6 +17,7 @@
 #include "base/threading/sequenced_worker_pool.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "chromeos/audio/cras_audio_handler.h"
+#include "chromeos/cryptohome/system_salt_getter.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/network/network_connect.h"
 #include "chromeos/network/network_handler.h"
@@ -114,10 +115,12 @@ void WindowManagerApplication::InitializeComponents(bool init_network_handler) {
   chromeos::NetworkConnect::Initialize(network_connect_delegate_.get());
   // TODO(jamescook): Initialize real audio handler.
   chromeos::CrasAudioHandler::InitializeForTesting();
+  chromeos::SystemSaltGetter::Initialize();
 }
 
 void WindowManagerApplication::ShutdownComponents() {
   // NOTE: PowerStatus is shutdown by Shell.
+  chromeos::SystemSaltGetter::Shutdown();
   chromeos::CrasAudioHandler::Shutdown();
   chromeos::NetworkConnect::Shutdown();
   network_connect_delegate_.reset();