Change kEnableAudioTrackProcessing to a disable flag and remove finch code

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 "content/public/common/content_switches.h"
 
 #include "base/command_line.h"
 
 namespace switches {
 
@@ skipping 909 matching lines @@
 // Causes the process to run as a worker subprocess.
 const char kWorkerProcess[]                 = "worker";
 
 // The prefix used when starting the zygote process. (i.e. 'gdb --args')
 const char kZygoteCmdPrefix[]               = "zygote-cmd-prefix";
 
 // Causes the process to run as a renderer zygote.
 const char kZygoteProcess[]                 = "zygote";
 
 #if defined(ENABLE_WEBRTC)
-// Enables audio processing in a MediaStreamTrack. When this flag is on, AEC,
-// NS and AGC will be done per MediaStreamTrack instead of in PeerConnection.
-const char kEnableAudioTrackProcessing[]    = "enable-audio-track-processing";
+// Disables audio processing in a MediaStreamTrack. When this flag is on, AEC,
+// NS and AGC will be done in PeerConnection instead of MediaStreamTrack.
+const char kDisableAudioTrackProcessing[]    = "disable-audio-track-processing";
 
 // Disables WebRTC device enumeration.
 const char kDisableDeviceEnumeration[]      = "disable-device-enumeration";
 
 // Disables HW decode acceleration for WebRTC.
 const char kDisableWebRtcHWDecoding[]       = "disable-webrtc-hw-decoding";
 
 // Disables encryption of RTP Media for WebRTC. When Chrome embeds Content, it
 // ignores this switch on its stable and beta channels.
 const char kDisableWebRtcEncryption[]      = "disable-webrtc-encryption";
@@ skipping 53 matching lines @@
 
 // Disables support for Core Animation plugins. This is triggered when
 // accelerated compositing is disabled. See http://crbug.com/122430 .
 const char kDisableCoreAnimationPlugins[] =
     "disable-core-animation-plugins";
 #endif
 
 // Don't dump stuff here, follow the same order as the header.
 
 }  // namespace switches