Revert of Prepare for injectable SW decoders

webrtc/media/engine/videodecodersoftwarefallbackwrapper.cc

 /*
  *  Copyright (c) 2016 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.
  */
 
 #include "webrtc/media/engine/videodecodersoftwarefallbackwrapper.h"
 
 #include <string>
 
 #include "webrtc/media/engine/internaldecoderfactory.h"
 #include "webrtc/modules/video_coding/include/video_error_codes.h"
 #include "webrtc/rtc_base/checks.h"
 #include "webrtc/rtc_base/logging.h"
 #include "webrtc/rtc_base/trace_event.h"
 
 namespace webrtc {
 
 VideoDecoderSoftwareFallbackWrapper::VideoDecoderSoftwareFallbackWrapper(
     VideoCodecType codec_type,
-    std::unique_ptr<VideoDecoder> decoder)
+    VideoDecoder* decoder)
     : codec_type_(codec_type),
-      decoder_(std::move(decoder)),
+      decoder_(decoder),
       decoder_initialized_(false),
       callback_(nullptr) {}
 
 int32_t VideoDecoderSoftwareFallbackWrapper::InitDecode(
     const VideoCodec* codec_settings,
     int32_t number_of_cores) {
   RTC_DCHECK(!fallback_decoder_) << "Fallback decoder should never be "
                                     "initialized here, it should've been "
                                     "released.";
   codec_settings_ = *codec_settings;
@@ skipping 100 matching lines @@
   return decoder_->PrefersLateDecoding();
 }
 
 const char* VideoDecoderSoftwareFallbackWrapper::ImplementationName() const {
   if (fallback_decoder_)
     return fallback_implementation_name_.c_str();
   return decoder_->ImplementationName();
 }
 
 }  // namespace webrtc