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| 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef CONTENT_RENDERER_DEVICE_MOTION_SHARED_MEMORY_READER_H_ |
| 6 #define CONTENT_RENDERER_DEVICE_MOTION_SHARED_MEMORY_READER_H_ |
| 7 |
| 8 #include "base/shared_memory.h" |
| 9 #include "base/memory/scoped_ptr.h" |
| 10 |
| 11 namespace WebKit { |
| 12 class WebDeviceMotionData; |
| 13 } |
| 14 |
| 15 namespace content { |
| 16 |
| 17 struct DeviceMotionHardwareBuffer; |
| 18 |
| 19 class DeviceMotionSharedMemoryReader { |
| 20 public: |
| 21 DeviceMotionSharedMemoryReader(); |
| 22 virtual ~DeviceMotionSharedMemoryReader() { } |
| 23 |
| 24 virtual bool latestDeviceMotionData(WebKit::WebDeviceMotionData& data); |
| 25 virtual void startUpdating(); |
| 26 virtual void stopUpdating(); |
| 27 |
| 28 private: |
| 29 base::SharedMemoryHandle renderer_shared_memory_handle_; |
| 30 scoped_ptr<base::SharedMemory> renderer_shared_memory_; |
| 31 DeviceMotionHardwareBuffer* device_motion_hardware_buffer_; |
| 32 }; |
| 33 |
| 34 } // namespace content |
| 35 |
| 36 #endif // CONTENT_RENDERER_DEVICE_MOTION_SHARED_MEMORY_READER_H_ |
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