Replace deprecated base::NonThreadSafe in media/gpu in favor of SequenceChecker.

media/gpu/vaapi_picture.h

 // Copyright 2014 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.
 //
 // This file contains an interface of output pictures for the Vaapi
 // video decoder. This is implemented by different window system
 // (X11/Ozone) and used by VaapiVideoDecodeAccelerator to produce
 // output pictures.
 
 #ifndef MEDIA_GPU_VAAPI_PICTURE_H_
 #define MEDIA_GPU_VAAPI_PICTURE_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/ref_counted.h"
-#include "base/threading/non_thread_safe.h"
+#include "base/sequence_checker.h"
 #include "media/gpu/gpu_video_decode_accelerator_helpers.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 
 namespace media {
 
 class VASurface;
 class VaapiWrapper;
 
 // Picture is native pixmap abstraction (X11/Ozone).
-class VaapiPicture : public base::NonThreadSafe {
+class VaapiPicture {
  public:
   // Create a VaapiPicture of |size| to be associated with |picture_buffer_id|.
   // If provided, bind it to |texture_id|, as well as to |client_texture_id|
   // using |bind_image_cb|.
   static linked_ptr<VaapiPicture> CreatePicture(
       const scoped_refptr<VaapiWrapper>& vaapi_wrapper,
       const MakeGLContextCurrentCallback& make_context_current_cb,
       const BindGLImageCallback& bind_image_cb,
       int32_t picture_buffer_id,
       const gfx::Size& size,
@@ skipping 40 matching lines @@
   const MakeGLContextCurrentCallback make_context_current_cb_;
   const BindGLImageCallback bind_image_cb_;
 
   const gfx::Size size_;
   const uint32_t texture_id_;
   const uint32_t client_texture_id_;
 
  private:
   int32_t picture_buffer_id_;
 
+  SEQUENCE_CHECKER(sequence_checker_);
+
   DISALLOW_COPY_AND_ASSIGN(VaapiPicture);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_GPU_VAAPI_PICTURE_H_