Convert Gamepad IPC messages into mojo interface.

content/browser/renderer_host/gamepad_monitor.h

+// Copyright (c) 2012 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 CONTENT_BROWSER_RENDERER_HOST_GAMEPAD_MONITOR_H_
+#define CONTENT_BROWSER_RENDERER_HOST_GAMEPAD_MONITOR_H_
+
+#include "base/compiler_specific.h"
+#include "base/macros.h"
+#include "device/gamepad/gamepad_consumer.h"
+#include "device/gamepad/public/interfaces/gamepad.mojom.h"
+
+namespace content {
+
+class GamepadMonitor : public device::GamepadConsumer,
+                       public device::mojom::GamepadMonitor {
+ public:
+  GamepadMonitor();
+  ~GamepadMonitor() override;
+
+  static void Create(device::mojom::GamepadMonitorRequest request);
+
+  // GamepadConsumer implementation.
+  void OnGamepadConnected(unsigned index,
+                          const blink::WebGamepad& gamepad) override;
+  void OnGamepadDisconnected(unsigned index,
+                             const blink::WebGamepad& gamepad) override;
+
+  // device::mojom::GamepadMonitor implementation.
+  void GamepadStartPolling(
+      const GamepadStartPollingCallback& callback) override;
+  void GamepadStopPolling(const GamepadStopPollingCallback& callback) override;
+  void SetObserver(device::mojom::GamepadObserverPtr gamepad_observer) override;
+
+ private:
+  device::mojom::GamepadObserverPtr gamepad_observer_;
+  bool is_started_;
+
+  DISALLOW_COPY_AND_ASSIGN(GamepadMonitor);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_RENDERER_HOST_GAMEPAD_MONITOR_H_