Small fixes for WevRTC protocol in host

remoting/codec/webrtc_video_encoder_vpx.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 "remoting/codec/webrtc_video_encoder_vpx.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 282 matching lines @@
   act_map.cols = active_map_size_.width();
   act_map.active_map = active_map_.get();
 
   webrtc::DesktopRegion updated_region;
   // Convert the updated capture data ready for encode.
   PrepareImage(frame, &updated_region);
 
   // Update active map based on updated region.
   if (params.clear_active_map)
     ClearActiveMap();
+
+  if (params.key_frame)
+    updated_region.SetRect(webrtc::DesktopRect::MakeSize(frame.size()));
+
   SetActiveMapFromRegion(updated_region);
 
   // Apply active map to the encoder.
   if (vpx_codec_control(codec_.get(), VP8E_SET_ACTIVEMAP, &act_map)) {
     LOG(ERROR) << "Unable to apply active map";
   }
 
   vpx_codec_err_t ret = vpx_codec_encode(
       codec_.get(), image_.get(), 0, params.duration.InMicroseconds(),
       (params.key_frame) ? VPX_EFLAG_FORCE_KF : 0, VPX_DL_REALTIME);
@@ skipping 281 matching lines @@
             kMacroBlockSize * (y + 1)));
       }
       x0 = x1 + 1;
     }
   }
   updated_region->IntersectWith(
       webrtc::DesktopRect::MakeWH(image_->w, image_->h));
 }
 
 }  // namespace remoting