Add VaapiVideoEncodeAccelerator for HW-accelerated video encode.

content/common/gpu/media/h264_dpb.h

 // Copyright (c) 2012 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 implementation of an H.264 Decoded Picture Buffer
 // used in H264 decoders.
 
 #ifndef CONTENT_COMMON_GPU_MEDIA_H264_DPB_H_
 #define CONTENT_COMMON_GPU_MEDIA_H264_DPB_H_
 
@@ skipping 23 matching lines @@
   int pic_order_cnt_msb;
   int pic_order_cnt_lsb;
 
   int pic_num;
   int long_term_pic_num;
   int frame_num;  // from slice header
   int frame_num_offset;
   int frame_num_wrap;
   int long_term_frame_idx;
 
+  media::H264SliceHeader::Type type;
   bool idr;  // IDR picture?
   bool ref;  // reference picture?
   bool long_term;  // long term reference picture?
   bool outputted;
   // Does memory management op 5 needs to be executed after this
   // picture has finished decoding?
   bool mem_mgmt_5;
 
   Field field;
 
@@ skipping 74 matching lines @@
  private:
   Pictures pics_;
   size_t max_num_pics_;
 
   DISALLOW_COPY_AND_ASSIGN(H264DPB);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_H264_DPB_H_