Add ability to instantiate VideoEncoderSoftwareFallback in VP tests.

webrtc/modules/video_coding/codecs/test/videoprocessor_integrationtest_openh264.cc

 /*
  *  Copyright (c) 2017 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 25 matching lines @@
  protected:
   VideoProcessorIntegrationTestOpenH264() {
     config_.filename = "foreman_cif";
     config_.input_filename = ResourcePath(config_.filename, "yuv");
     config_.output_filename =
         TempFilename(OutputPath(), "videoprocessor_integrationtest_libvpx");
     config_.networking_config.packet_loss_probability = 0.0;
     // Only allow encoder/decoder to use single core, for predictability.
     config_.use_single_core = true;
     config_.verbose = false;
-    config_.hw_codec = false;
+    config_.hw_encoder = false;
+    config_.hw_decoder = false;
   }
 };
 
 // H264: Run with no packet loss and fixed bitrate. Quality should be very high.
 // Note(hbos): The PacketManipulatorImpl code used to simulate packet loss in
 // these unittests appears to drop "packets" in a way that is not compatible
 // with H264. Therefore ProcessXPercentPacketLossH264, X != 0, unittests have
 // not been added.
 TEST_F(VideoProcessorIntegrationTestOpenH264, Process0PercentPacketLossH264) {
   SetCodecSettings(&config_, kVideoCodecH264, 1, false, false, true, false,
@@ skipping 10 matching lines @@
   QualityThresholds quality_thresholds(35.0, 25.0, 0.93, 0.70);
 
   ProcessFramesAndMaybeVerify(rate_profile, &rc_thresholds, &quality_thresholds,
                               kNoVisualizationParams);
 }
 
 #endif  // defined(WEBRTC_USE_H264)
 
 }  // namespace test
 }  // namespace webrtc