Increase Windows XP hardware buffer size to 4096.

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 732 matching lines @@
 }
 
 void RenderProcessHostImpl::PropagateBrowserCommandLineToRenderer(
     const CommandLine& browser_cmd,
     CommandLine* renderer_cmd) const {
   // Propagate the following switches to the renderer command line (along
   // with any associated values) if present in the browser command line.
   static const char* const kSwitchNames[] = {
     // We propagate the Chrome Frame command line here as well in case the
     // renderer is not run in the sandbox.
+    switches::kAudioBufferSize,
     switches::kAuditAllHandles,
     switches::kAuditHandles,
     switches::kChromeFrame,
     switches::kDisable3DAPIs,
     switches::kDisableAcceleratedCompositing,
     switches::kDisableAcceleratedVideoDecode,
     switches::kDisableApplicationCache,
     switches::kDisableAudio,
     switches::kDisableAudioOutputResampler,
     switches::kDisableBreakpad,
@@ skipping 838 matching lines @@
       int32 gpu_process_host_id) {
   TRACE_EVENT0("renderer_host",
                "RenderWidgetHostImpl::OnCompositorSurfaceBuffersSwappedNoHost");
   RenderWidgetHostImpl::AcknowledgeBufferPresent(route_id,
                                                  gpu_process_host_id,
                                                  false,
                                                  0);
 }
 
 }  // namespace content