Migrating majority of gamepad from content/browser/ to device/

device/gamepad/gamepad_consumer.h

+// Copyright 2014 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 DEVICE_GAMEPAD_GAMEPAD_CONSUMER_H_
+#define DEVICE_GAMEPAD_GAMEPAD_CONSUMER_H_
+
+#include "device/gamepad/gamepad_export.h"
+#include "third_party/WebKit/public/platform/WebGamepad.h"
+
+namespace device {
+
+class DEVICE_GAMEPAD_EXPORT GamepadConsumer {
+ public:
+  virtual void OnGamepadConnected(unsigned index,
+                                  const blink::WebGamepad& gamepad) = 0;
+  virtual void OnGamepadDisconnected(unsigned index,
+                                     const blink::WebGamepad& gamepad) = 0;
+};
+
+}  // namespace device
+
+#endif  // DEVICE_GAMEPAD_GAMEPAD_CONSUMER_H_