Movw GamepadService out of content/browser/ and into device/

content/renderer/gamepad_shared_memory_reader.h

 // Copyright (c) 2011 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_RENDERER_GAMEPAD_SHARED_MEMORY_READER_H_
 #define CONTENT_RENDERER_GAMEPAD_SHARED_MEMORY_READER_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/memory/shared_memory.h"
 #include "content/common/gamepad_messages.h"
 #include "content/public/renderer/renderer_gamepad_provider.h"
+#include "device/base/synchronization/shared_memory_seqlock_buffer.h"
 #include "third_party/WebKit/public/platform/WebGamepads.h"
 
 namespace content {
 
-struct GamepadHardwareBuffer;
+typedef device::SharedMemorySeqLockBuffer<blink::WebGamepads>
+    GamepadHardwareBuffer;
 
 class GamepadSharedMemoryReader : public RendererGamepadProvider {
  public:
   explicit GamepadSharedMemoryReader(RenderThread* thread);
   ~GamepadSharedMemoryReader() override;
 
   // RendererGamepadProvider implementation.
   void SampleGamepads(blink::WebGamepads& gamepads) override;
   bool OnControlMessageReceived(const IPC::Message& message) override;
   void Start(blink::WebPlatformEventListener* listener) override;
@@ skipping 12 matching lines @@
   GamepadHardwareBuffer* gamepad_hardware_buffer_;
 
   bool ever_interacted_with_;
 
   DISALLOW_COPY_AND_ASSIGN(GamepadSharedMemoryReader);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_GAMEPAD_SHARED_MEMORY_READER_H_