Increase the buffer size in AudioRendererImpl to fix muted playback rate

content/browser/renderer_host/media/audio_input_renderer_host.cc

Index: content/browser/renderer_host/media/audio_input_renderer_host.cc
diff --git a/content/browser/renderer_host/media/audio_input_renderer_host.cc b/content/browser/renderer_host/media/audio_input_renderer_host.cc
index bc9a0fbdf5ab0bd9f3458e091610246f7cbd3f78..a7c539c7d5b04b6ceaf7d81806e39aca618857b2 100644
--- a/content/browser/renderer_host/media/audio_input_renderer_host.cc
+++ b/content/browser/renderer_host/media/audio_input_renderer_host.cc
@@ -8,12 +8,12 @@
 #include "base/metrics/histogram.h"
 #include "base/process.h"
 #include "base/shared_memory.h"
-#include "content/browser/renderer_host/media/audio_common.h"
 #include "content/browser/renderer_host/media/audio_input_device_manager.h"
 #include "content/browser/renderer_host/media/audio_input_sync_writer.h"
 #include "content/browser/renderer_host/media/media_stream_manager.h"
 #include "content/common/media/audio_messages.h"
 #include "content/public/browser/resource_context.h"
+#include "media/audio/audio_util.h"
 
 using content::BrowserMessageFilter;
 using content::BrowserThread;
@@ -209,7 +209,8 @@ void AudioInputRendererHost::OnCreateStream(int stream_id,
 
   // Select the hardware packet size if not specified.
   if (!audio_params.samples_per_packet) {
-    audio_params.samples_per_packet = SelectSamplesPerPacket(audio_params);
+    audio_params.samples_per_packet =
+        media::SelectSamplesPerPacket(audio_params.sample_rate);
   }
   uint32 packet_size = audio_params.GetPacketSize();