ECDSA default certificate in WebRTC: Remove experiment flag kWebRtcEcdsaDefault.

content/public/common/content_features.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "build/build_config.h"
 #include "content/public/common/content_features.h"
 
 namespace features {
 
 // All features in alphabetical order.
@@ skipping 89 matching lines @@
 
 // Enables token binding
 // (https://www.ietf.org/id/draft-ietf-tokbind-protocol-04.txt).
 const base::Feature kTokenBinding{"token-binding",
                                   base::FEATURE_DISABLED_BY_DEFAULT};
 
 // An experimental User Agent Intervention on WebFonts loading.
 const base::Feature kWebFontsInterventionV2{"WebFontsInterventionV2",
                                             base::FEATURE_DISABLED_BY_DEFAULT};
 
-// Makes WebRTC use ECDSA certs by default (i.e., when no cert type was
-// specified in JS).
-const base::Feature kWebRtcEcdsaDefault {"WebRTC-EnableWebRtcEcdsa",
-                                         base::FEATURE_ENABLED_BY_DEFAULT};
-
 // Controls whether the WebUSB API is enabled:
 // https://wicg.github.io/webusb
 const base::Feature kWebUsb{"WebUSB", base::FEATURE_ENABLED_BY_DEFAULT};
 
 #if defined(OS_ANDROID)
 // Use IME's own thread instead of using main UI thread. It also means that
 // we will not use replica editor and do a round trip to renderer to synchronize
 // with Blink data.
 const base::Feature kImeThread{"ImeThread", base::FEATURE_DISABLED_BY_DEFAULT};
 
 // FeatureList definition for the Seccomp field trial.
 const base::Feature kSeccompSandboxAndroid{"SeccompSandboxAndroid",
                                            base::FEATURE_DISABLED_BY_DEFAULT};
 #endif
 
 }  // namespace features