Remove cricket::VideoFrame::Set/GetElapsedTime()

talk/media/base/videoframefactory.cc

 /*
  * libjingle
  * Copyright 2014 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 52 matching lines @@
       output_frame_->GetHeight() != static_cast<size_t>(output_height)) {
     output_frame_.reset(
         cropped_input_frame->Stretch(output_width, output_height, true, true));
     if (!output_frame_) {
       LOG(LS_WARNING) << "Failed to stretch frame to " << output_width << "x"
                       << output_height;
       return NULL;
     }
   } else {
     cropped_input_frame->StretchToFrame(output_frame_.get(), true, true);
-    output_frame_->SetElapsedTime(cropped_input_frame->GetElapsedTime());
     output_frame_->SetTimeStamp(cropped_input_frame->GetTimeStamp());
   }
   return output_frame_->Copy();
 }
 
 }  // namespace cricket