Gets chrome --mus some what working

ash/common/wm_shell.h

 // 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.
 
 #ifndef ASH_COMMON_WM_SHELL_H_
 #define ASH_COMMON_WM_SHELL_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 32 matching lines @@
 class RootWindowController;
 class ScopedDisableInternalMouseAndKeyboard;
 class SessionStateDelegate;
 struct ShellInitParams;
 class WindowCycleEventFilter;
 class WindowResizer;
 class WmDisplayObserver;
 class WmWindow;
 class WorkspaceEventHandler;
 
+enum class Config;
 enum class LoginStatus;
 enum class TaskSwitchSource;
 
 namespace wm {
 class MaximizeModeEventHandler;
 class WindowState;
 }
 
 // Similar to ash::Shell. Eventually the two will be merged.
 class ASH_EXPORT WmShell {
  public:
   virtual ~WmShell();
 
   static WmShell* Get();
   static bool HasInstance() { return instance_ != nullptr; }
 
   virtual void Shutdown();
 
   // Returns true when ash is running as a service_manager::Service.
+  // TODO(sky): remove and convert to GetConfig().
   virtual bool IsRunningInMash() const = 0;
+  virtual Config GetConfig() const = 0;
 
   virtual WmWindow* GetFocusedWindow() = 0;
   virtual WmWindow* GetActiveWindow() = 0;
 
   virtual WmWindow* GetCaptureWindow() = 0;
 
   // Convenience for GetPrimaryRootWindow()->GetRootWindowController().
   RootWindowController* GetPrimaryRootWindowController();
 
   virtual WmWindow* GetPrimaryRootWindow() = 0;
@@ skipping 156 matching lines @@
   static WmShell* instance_;
 
   base::ObserverList<LockStateObserver> lock_state_observers_;
 
   bool simulate_modal_window_open_for_testing_ = false;
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_WM_SHELL_H_