Fix type of local encoded length variable from uint32_t to size_t.

webrtc/modules/video_coding/codecs/vp8/vp8_impl.cc

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 960 matching lines @@
     RTPFragmentationHeader frag_info;
     // token_partitions_ is number of bits used.
     frag_info.VerifyAndAllocateFragmentationHeader((1 << token_partitions_) +
                                                    1);
     CodecSpecificInfo codec_specific;
     const vpx_codec_cx_pkt_t* pkt = NULL;
     while ((pkt = vpx_codec_get_cx_data(&encoders_[encoder_idx], &iter)) !=
            NULL) {
       switch (pkt->kind) {
         case VPX_CODEC_CX_FRAME_PKT: {
-          uint32_t length = encoded_images_[encoder_idx]._length;
+          size_t length = encoded_images_[encoder_idx]._length;
           if (pkt->data.frame.sz + length >
               encoded_images_[encoder_idx]._size) {
             uint8_t* buffer = new uint8_t[pkt->data.frame.sz + length];
             memcpy(buffer, encoded_images_[encoder_idx]._buffer, length);
             delete[] encoded_images_[encoder_idx]._buffer;
             encoded_images_[encoder_idx]._buffer = buffer;
             encoded_images_[encoder_idx]._size = pkt->data.frame.sz + length;
           }
           memcpy(&encoded_images_[encoder_idx]._buffer[length],
                  pkt->data.frame.buf, pkt->data.frame.sz);
@@ skipping 417 matching lines @@
     return -1;
   }
   if (vpx_codec_control(copy->decoder_, VP8_SET_REFERENCE, ref_frame_) !=
       VPX_CODEC_OK) {
     return -1;
   }
   return 0;
 }
 
 }  // namespace webrtc