Test field trial group with startswith rather than equals.

webrtc/video/video_quality_test.cc

 /*
  *  Copyright (c) 2015 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/video/video_quality_test.h"
@@ skipping 1423 matching lines @@
   if (graph_title.empty())
     graph_title = VideoQualityTest::GenerateGraphTitle();
 
   // In the case of different resolutions, the functions calculating PSNR and
   // SSIM return -1.0, instead of a positive value as usual. VideoAnalyzer
   // aborts if the average psnr/ssim are below the given threshold, which is
   // 0.0 by default. Setting the thresholds to -1.1 prevents the unnecessary
   // abort.
   VideoStream& selected_stream = params_.ss.streams[params_.ss.selected_stream];
 
-  bool is_quick_test_enabled =
-      field_trial::FindFullName("WebRTC-QuickPerfTest") == "Enabled";
+  bool is_quick_test_enabled = field_trial::IsEnabled("WebRTC-QuickPerfTest");
   VideoAnalyzer analyzer(
       &send_transport, params_.analyzer.test_label,
 
       params_.analyzer.avg_psnr_threshold, params_.analyzer.avg_ssim_threshold,
       is_quick_test_enabled
           ? kFramesSentInQuickTest
           : params_.analyzer.test_durations_secs * params_.video.fps,
       graph_data_output_file, graph_title,
       kVideoSendSsrcs[params_.ss.selected_stream],
       kSendRtxSsrcs[params_.ss.selected_stream],
@@ skipping 245 matching lines @@
     std::ostringstream str;
     str << receive_logs_++;
     std::string path =
         params_.video.encoded_frame_base_path + "." + str.str() + ".recv.ivf";
     stream->EnableEncodedFrameRecording(rtc::CreatePlatformFile(path),
                                         10000000);
   }
 }
 
 }  // namespace webrtc