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

device/gamepad/gamepad_shared_buffer.h

Index: device/gamepad/gamepad_shared_buffer.h
diff --git a/device/gamepad/gamepad_shared_buffer.h b/device/gamepad/gamepad_shared_buffer.h
new file mode 100644
index 0000000000000000000000000000000000000000..04cb911df969e107bbeb82ef6831e3abaa6ba2ee
--- /dev/null
+++ b/device/gamepad/gamepad_shared_buffer.h
@@ -0,0 +1,27 @@
+// Copyright (c) 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 DEVICE_GAMEPAD_SHARED_BUFFER_H_
+#define DEVICE_GAMEPAD_SHARED_BUFFER_H_
+
+#include "base/memory/shared_memory.h"
+#include "device/gamepad/gamepad_export.h"
+#include "third_party/WebKit/public/platform/WebGamepads.h"
+
+namespace device {
+
+class DEVICE_GAMEPAD_EXPORT GamepadSharedBuffer {
+ public:
+  virtual ~GamepadSharedBuffer() {}
+
+  virtual base::SharedMemory* shared_memory() = 0;
+  virtual blink::WebGamepads* buffer() = 0;
+
+  virtual void WriteBegin() = 0;
+  virtual void WriteEnd() = 0;
+};
+
+}  // namespace device
+
+#endif  // DEVICE_GAMEPAD_SHARED_BUFFER_H_