Move OneWriterSeqLock and SharedMemorySeqLockBuffer from content/ to device/base/synchronization

content/common/device_sensors/device_motion_hardware_buffer.h

Index: content/common/device_sensors/device_motion_hardware_buffer.h
diff --git a/content/common/device_sensors/device_motion_hardware_buffer.h b/content/common/device_sensors/device_motion_hardware_buffer.h
index d387cdac3d655d7ddf64d8f80b4f5e108eda8406..153a3af4a60387fa72b89e1dab5fb18815a83557 100644
--- a/content/common/device_sensors/device_motion_hardware_buffer.h
+++ b/content/common/device_sensors/device_motion_hardware_buffer.h
@@ -5,12 +5,12 @@
 #ifndef CONTENT_COMMON_DEVICE_SENSORS_DEVICE_MOTION_HARDWARE_BUFFER_H_
 #define CONTENT_COMMON_DEVICE_SENSORS_DEVICE_MOTION_HARDWARE_BUFFER_H_
 
-#include "content/common/shared_memory_seqlock_buffer.h"
+#include "base/synchronization/shared_memory_seqlock_buffer.h"
 #include "third_party/WebKit/public/platform/modules/device_orientation/WebDeviceMotionData.h"
 
 namespace content {
 
-typedef SharedMemorySeqLockBuffer<blink::WebDeviceMotionData>
+typedef base::SharedMemorySeqLockBuffer<blink::WebDeviceMotionData>
     DeviceMotionHardwareBuffer;
 
 }  // namespace content