Revert 226264 "Be able to build cast_unittest and related target..."

trunk/src/media/cast/video_sender/codecs/vp8/vp8_encoder.cc

 // Copyright 2013 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.
 //
 // TODO (pwestin): add a link to the design document describing the generic
 // protocol and the VP8 specific details.
 #include "media/cast/video_sender/codecs/vp8/vp8_encoder.h"
 
 #include <vector>
 
@@ skipping 143 matching lines @@
     return false;
   }
   timestamp_ += duration;
 
   // Get encoded frame.
   const vpx_codec_cx_pkt_t *pkt = NULL;
   vpx_codec_iter_t iter = NULL;
   int total_size = 0;
   while ((pkt = vpx_codec_get_cx_data(encoder_, &iter)) != NULL) {
     if (pkt->kind == VPX_CODEC_CX_FRAME_PKT) {
-      total_size += static_cast<int>(pkt->data.frame.sz);
+      total_size += pkt->data.frame.sz;
       encoded_image->data.reserve(total_size);
       encoded_image->data.insert(
           encoded_image->data.end(),
           static_cast<const uint8*>(pkt->data.frame.buf),
           static_cast<const uint8*>(pkt->data.frame.buf) +
               pkt->data.frame.sz);
       if (pkt->data.frame.flags & VPX_FRAME_IS_KEY) {
         encoded_image->key_frame = true;
       } else {
         encoded_image->key_frame = false;
@@ skipping 168 matching lines @@
   float scale_parameter = 0.5;
   uint32 target_pct = optimal_buffer_size_ms * scale_parameter *
       cast_config_.max_frame_rate / 10;
 
   // Don't go below 3 times the per frame bandwidth.
   return std::max(target_pct, kMinIntra);
 }
 
 }  // namespace cast
 }  // namespace media