Rename Launcher to Shelf.

ash/test/test_session_state_delegate.cc

Index: ash/test/test_session_state_delegate.cc
diff --git a/ash/test/test_session_state_delegate.cc b/ash/test/test_session_state_delegate.cc
index 5c168078b49e62c6ee3471132db1d80472781b43..a0d8f19fe3621beb2681be6d9389b22329c8081c 100644
--- a/ash/test/test_session_state_delegate.cc
+++ b/ash/test/test_session_state_delegate.cc
@@ -85,7 +85,7 @@ void TestSessionStateDelegate::SetHasActiveUser(bool has_active_user) {
   if (!has_active_user)
     active_user_session_started_ = false;
   else
-    Shell::GetInstance()->ShowLauncher();
+    Shell::GetInstance()->ShowShelf();
 }
 
 void TestSessionStateDelegate::SetActiveUserSessionStarted(
@@ -93,7 +93,7 @@ void TestSessionStateDelegate::SetActiveUserSessionStarted(
   active_user_session_started_ = active_user_session_started;
   if (active_user_session_started) {
     has_active_user_ = true;
-    Shell::GetInstance()->CreateLauncher();
+    Shell::GetInstance()->CreateShelf();
     Shell::GetInstance()->UpdateAfterLoginStatusChange(
         user::LOGGED_IN_USER);
   }