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

content/common/device_sensors/device_orientation_hardware_buffer.h

Index: content/common/device_sensors/device_orientation_hardware_buffer.h
diff --git a/content/common/device_sensors/device_orientation_hardware_buffer.h b/content/common/device_sensors/device_orientation_hardware_buffer.h
index c7a0ae87981566450bb93897290f1d593364b1a9..1a295dcf9239224a9875d36d406173947c606d04 100644
--- a/content/common/device_sensors/device_orientation_hardware_buffer.h
+++ b/content/common/device_sensors/device_orientation_hardware_buffer.h
@@ -5,12 +5,12 @@
 #ifndef CONTENT_COMMON_DEVICE_SENSORS_DEVICE_ORIENTATION_HARDWARE_BUFFER_H_
 #define CONTENT_COMMON_DEVICE_SENSORS_DEVICE_ORIENTATION_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/WebDeviceOrientationData.h"
 
 namespace content {
 
-typedef SharedMemorySeqLockBuffer<blink::WebDeviceOrientationData>
+typedef base::SharedMemorySeqLockBuffer<blink::WebDeviceOrientationData>
     DeviceOrientationHardwareBuffer;
 
 }  // namespace content