mash: Migrate tray IME view to wm common types, move to //ash/common

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 "ash/common/default_accessibility_delegate.h"
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/shell_observer.h"
 #include "ash/common/shell_window_ids.h"
@@ skipping 287 matching lines @@
 
   FOR_EACH_OBSERVER(WmActivationObserver, activation_observers_,
                     OnWindowActivated(gained_active, lost_active));
 }
 
 void WmShellMus::OnWillDestroyClient(::mus::WindowTreeClient* client) {
   DCHECK_EQ(client, client_);
   RemoveClientObserver();
 }
 
+#if defined(OS_CHROMEOS)
+void WmShellMus::ToggleIgnoreExternalKeyboard() {
+  NOTIMPLEMENTED();
+}
+#endif  // defined(OS_CHROMEOS)
+
 }  // namespace mus
 }  // namespace ash