Fix MediaClient::RequestCaptureState().

ash/mus/bridge/wm_shell_mus.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/mus/bridge/wm_shell_mus.h"
 
 #include <utility>
 
 #include "ash/common/accelerators/accelerator_controller.h"
 #include "ash/common/key_event_watcher.h"
@@ skipping 39 matching lines @@
 // of SessionStateDelegate.
 class SessionStateDelegateStub : public SessionStateDelegate {
  public:
   SessionStateDelegateStub()
       : screen_locked_(false), user_info_(new user_manager::UserInfoImpl()) {}
 
   ~SessionStateDelegateStub() override {}
 
   // SessionStateDelegate:
   int GetMaximumNumberOfLoggedInUsers() const override { return 3; }
-  int NumberOfLoggedInUsers() const override {
-    // ash_shell has 2 users.
-    return 2;
-  }
+  int NumberOfLoggedInUsers() const override { return 1; }
   bool IsActiveUserSessionStarted() const override { return true; }
   bool CanLockScreen() const override { return true; }
   bool IsScreenLocked() const override { return screen_locked_; }
   bool ShouldLockScreenAutomatically() const override { return false; }
   void LockScreen() override {
     screen_locked_ = true;
     NOTIMPLEMENTED();
   }
   void UnlockScreen() override {
     NOTIMPLEMENTED();
@@ skipping 369 matching lines @@
   WmWindow* gained_active_wm = WmWindowMus::Get(gained_active);
   if (gained_active_wm)
     set_root_window_for_new_windows(gained_active_wm->GetRootWindow());
   WmWindow* lost_active_wm = WmWindowMus::Get(lost_active);
   for (auto& observer : activation_observers_)
     observer.OnWindowActivated(gained_active_wm, lost_active_wm);
 }
 
 }  // namespace mus
 }  // namespace ash