Test field trial group with startswith rather than equals.

webrtc/system_wrappers/include/field_trial.h

 //
 // Copyright (c) 2014 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 44 matching lines @@
 
 namespace webrtc {
 namespace field_trial {
 
 // Returns the group name chosen for the named trial, or the empty string
 // if the trial does not exists.
 //
 // Note: To keep things tidy append all the trial names with WebRTC.
 std::string FindFullName(const std::string& name);
 
+// Convenience method, returns true iff FindFullName(name) return a string that
+// starts with "Enabled".
+bool IsEnabled(const std::string& name);

[tommi, 2017/02/28 11:52:41]

const char*

[sprang_webrtc, 2017/02/28 12:18:31]

Done.

+
 }  // namespace field_trial
 }  // namespace webrtc
 
 #endif  // WEBRTC_SYSTEM_WRAPPERS_INCLUDE_FIELD_TRIAL_H_