Refactors keyboard related code so mash can use a keyboard

chrome/browser/ui/ash/keyboard_ui_service.h

Index: chrome/browser/ui/ash/keyboard_ui_service.h
diff --git a/chrome/browser/ui/ash/keyboard_ui_service.h b/chrome/browser/ui/ash/keyboard_ui_service.h
new file mode 100644
index 0000000000000000000000000000000000000000..96f4b3e58714ae790af4183ba200ba5267628b98
--- /dev/null
+++ b/chrome/browser/ui/ash/keyboard_ui_service.h
@@ -0,0 +1,24 @@
+// 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 CHROME_BROWSER_UI_ASH_KEYBOARD_UI_SERVICE_H_
+#define CHROME_BROWSER_UI_ASH_KEYBOARD_UI_SERVICE_H_
+
+#include "ui/keyboard/keyboard.mojom.h"
+
+class KeyboardUIService : public keyboard::mojom::Keyboard {
+ public:
+  KeyboardUIService();
+  ~KeyboardUIService() override;
+
+  // keyboard::mojom::Keyboard:
+  void Show() override;
+  void Hide() override;
+  void AddObserver(keyboard::mojom::KeyboardObserverPtr observer) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(KeyboardUIService);
+};
+
+#endif  // CHROME_BROWSER_UI_ASH_KEYBOARD_UI_SERVICE_H_