Add aec-refined-adaptive-filter command line switch

content/public/common/content_switches.cc

 // Copyright (c) 2012 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_switches.h"
 
 namespace switches {
 
 // The number of MSAA samples for canvas2D. Requires MSAA support by GPU to
 // have an effect. 0 disables MSAA.
 const char kAcceleratedCanvas2dMSAASampleCount[] = "canvas-msaa-sample-count";
 
+// Enables a new tuning of the WebRTC Acoustic Echo Canceler (AEC). The new
+// tuning aims at resolving two issues with the AEC:
+// https://bugs.chromium.org/p/webrtc/issues/detail?id=5777
+// https://bugs.chromium.org/p/webrtc/issues/detail?id=5778
+// TODO(hlundin): Remove this switch when experimentation is over;
+// crbug.com/603821.
+const char kAecRefinedAdaptiveFilter[] = "aec-refined-adaptive-filter";
+
 // Override the default minimum starting volume of the Automatic Gain Control
 // algorithm in WebRTC used with audio tracks from getUserMedia.
 // The valid range is 12-255. Values outside that range will be clamped
 // to the lowest or highest valid value inside WebRTC.
 // TODO(tommi): Remove this switch when crbug.com/555577 is fixed.
 const char kAgcStartupMinVolume[] = "agc-startup-min-volume";
 
 // By default, file:// URIs cannot read other file:// URIs. This is an
 // override for developers who need the old behavior for testing.
 const char kAllowFileAccessFromFiles[]      = "allow-file-access-from-files";
@@ skipping 993 matching lines @@
 const char kMemoryPressureThresholdsMb[] = "memory-pressure-thresholds-mb";
 
 // Enables the exporting of the tracing events to ETW. This is only supported on
 // Windows Vista and later.
 const char kTraceExportEventsToETW[] = "trace-export-events-to-etw";
 #endif
 
 // Don't dump stuff here, follow the same order as the header.
 
 }  // namespace switches