Added an "enable-audio-processor" flag and WebRtcAudioProcessor class

content/browser/renderer_host/render_process_host_impl.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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 1029 matching lines @@
     cc::switches::kStrictLayerPropertyChangeChecking,
     cc::switches::kTopControlsHeight,
     cc::switches::kTopControlsHideThreshold,
     cc::switches::kTopControlsShowThreshold,
     cc::switches::kTraceOverdraw,
 #if defined(ENABLE_PLUGINS)
     switches::kEnablePepperTesting,
     switches::kDisablePepper3d,
 #endif
 #if defined(ENABLE_WEBRTC)
+    switches::kEnableAudioTrackProcessing,
     switches::kDisableDeviceEnumeration,
     switches::kDisableSCTPDataChannels,
     switches::kDisableWebRtcHWDecoding,
     switches::kDisableWebRtcHWEncoding,
     switches::kEnableWebRtcAecRecordings,
     switches::kEnableWebRtcHWVp8Encoding,
     switches::kEnableWebRtcTcpServerSocket,
 #endif
 #if !defined (GOOGLE_CHROME_BUILD)
     // These are unsupported and not fully tested modes, so don't enable them
@@ skipping 774 matching lines @@
     // Skip widgets in other processes.
     if (widget->GetProcess()->GetID() != GetID())
       continue;
 
     RenderViewHost* rvh = RenderViewHost::From(widget);
     rvh->UpdateWebkitPreferences(rvh->GetWebkitPreferences());
   }
 }
 
 }  // namespace content