Move more from WmShell to Shell

ash/aura/wm_shell_aura.cc

Index: ash/aura/wm_shell_aura.cc
diff --git a/ash/aura/wm_shell_aura.cc b/ash/aura/wm_shell_aura.cc
index 42029c3c401e9ee6d9b8730e2a60536752309290..0c495e82915096545c6d7fba59f52777ea69a473 100644
--- a/ash/aura/wm_shell_aura.cc
+++ b/ash/aura/wm_shell_aura.cc
@@ -10,6 +10,7 @@
 #include "ash/aura/key_event_watcher_aura.h"
 #include "ash/aura/pointer_watcher_adapter.h"
 #include "ash/common/accelerators/accelerator_controller.h"
+#include "ash/common/keyboard/keyboard_ui.h"
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/shell_delegate.h"
 #include "ash/common/shell_observer.h"
@@ -215,6 +216,10 @@ WmShellAura::CreateImmersiveFullscreenController() {
   return base::MakeUnique<ImmersiveFullscreenController>();
 }
 
+std::unique_ptr<KeyboardUI> WmShellAura::CreateKeyboardUI() {
+  return KeyboardUI::Create();
+}
+
 std::unique_ptr<KeyEventWatcher> WmShellAura::CreateKeyEventWatcher() {
   return base::MakeUnique<KeyEventWatcherAura>();
 }