Test field trial group with startswith rather than equals.

webrtc/media/engine/internalencoderfactory.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/internalencoderfactory.h"
 
 #include <utility>
 
 #include "webrtc/modules/video_coding/codecs/h264/include/h264.h"
 #include "webrtc/modules/video_coding/codecs/vp8/include/vp8.h"
 #include "webrtc/modules/video_coding/codecs/vp9/include/vp9.h"
 #include "webrtc/system_wrappers/include/field_trial.h"
 
 namespace cricket {
 
 namespace {
 
 const char kFlexfecFieldTrialName[] = "WebRTC-FlexFEC-03";
 
 bool IsFlexfecFieldTrialEnabled() {
-  return webrtc::field_trial::FindFullName(kFlexfecFieldTrialName) == "Enabled";
+  return webrtc::field_trial::IsEnabled(kFlexfecFieldTrialName);
 }
 
 }  // namespace
 
 InternalEncoderFactory::InternalEncoderFactory() {
   supported_codecs_.push_back(cricket::VideoCodec(kVp8CodecName));
   if (webrtc::VP9Encoder::IsSupported())
     supported_codecs_.push_back(cricket::VideoCodec(kVp9CodecName));
   if (webrtc::H264Encoder::IsSupported()) {
     cricket::VideoCodec codec(kH264CodecName);
@@ skipping 47 matching lines @@
 InternalEncoderFactory::supported_codecs() const {
   return supported_codecs_;
 }
 
 void InternalEncoderFactory::DestroyVideoEncoder(
     webrtc::VideoEncoder* encoder) {
   delete encoder;
 }
 
 }  // namespace cricket