Adding keyboard service.

shell/android/keyboard_impl.h

+// Copyright 2015 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 SHELL_ANDROID_KEYBOARD_IMPL_H_
+#define SHELL_ANDROID_KEYBOARD_IMPL_H_
+
+#include <jni.h>
+
+#include "mojo/public/cpp/bindings/interface_request.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
+#include "mojo/services/keyboard/public/interfaces/keyboard.mojom.h"
+
+namespace mojo {
+namespace shell {
+
+class KeyboardImpl : public Keyboard {
+ public:
+  KeyboardImpl(InterfaceRequest<Keyboard> request);
+  ~KeyboardImpl();
+
+  // Keyboard implementation
+  void Show() override;
+  void Hide() override;
+
+ private:
+  StrongBinding<Keyboard> binding_;
+};
+
+bool RegisterKeyboardJni(JNIEnv* env);
+
+}  // namespace shell
+}  // namespace mojo
+
+#endif  // SHELL_ANDROID_KEYBOARD_IMPL_H_