make base::SharedMemoryHandle a class on POSIX.

chrome/gpu/arc_gpu_video_decode_accelerator.cc

 // Copyright 2016 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.
 
 #include "chrome/gpu/arc_gpu_video_decode_accelerator.h"
 
 #include "base/callback_helpers.h"
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/numerics/safe_math.h"
@@ skipping 278 matching lines @@
       // integer.
       next_bitstream_buffer_id_ = (next_bitstream_buffer_id_ + 1) & 0x3FFFFFFF;
       int dup_fd = HANDLE_EINTR(dup(input_info->handle.get()));
       if (dup_fd < 0) {
         DLOG(ERROR) << "dup() failed.";
         arc_client_->OnError(PLATFORM_FAILURE);
         return;
       }
       CreateInputRecord(bitstream_buffer_id, index, metadata.timestamp);
       vda_->Decode(media::BitstreamBuffer(
-          bitstream_buffer_id, base::SharedMemoryHandle(dup_fd, true),
+          bitstream_buffer_id,
+          base::SharedMemoryHandle(base::FileDescriptor(dup_fd, true)),
           metadata.bytes_used, input_info->offset));
       break;
     }
     case PORT_OUTPUT: {
       // is_valid() is true for the first time the buffer is passed to the VDA.
       // In that case, VDA needs to import the buffer first.
       OutputBufferInfo& info = buffers_pending_import_[index];
       if (info.handle.is_valid()) {
         gfx::GpuMemoryBufferHandle handle;
 #if defined(USE_OZONE)
@@ skipping 212 matching lines @@
       }
       return true;
     default:
       DLOG(ERROR) << "Invalid port: " << port;
       return false;
   }
 }
 
 }  // namespace arc
 }  // namespace chromeos