Increase Windows XP hardware buffer size to 4096.

media/base/media_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 "media/base/media_switches.h"
 
 namespace switches {
 
+// Allow users to specify a custom buffer size for debugging purpose.
+const char kAudioBufferSize[] = "audio-buffer-size";
+
 #if defined(OS_LINUX) || defined(OS_FREEBSD) || defined(OS_SOLARIS)
 // The Alsa device to use when opening an audio stream.
 const char kAlsaOutputDevice[] = "alsa-output-device";
 // The Alsa device to use when opening an audio input stream.
 const char kAlsaInputDevice[] = "alsa-input-device";
 #endif
 
 #if defined(USE_CRAS)
 // Use CRAS, the ChromeOS audio server.
 const char kUseCras[] = "use-cras";
@@ skipping 29 matching lines @@
 // Enable browser-side audio mixer.
 const char kEnableAudioMixer[] = "enable-audio-mixer";
 
 // Enable live audio input with getUserMedia() and the Web Audio API.
 const char kEnableWebAudioInput[] = "enable-webaudio-input";
 
 // Set number of threads to use for video decoding.
 const char kVideoThreads[] = "video-threads";
 
 }  // namespace switches