Reduce jitter from uneven SincResampler buffer size requests.

media/base/audio_converter.cc

Index: media/base/audio_converter.cc
diff --git a/media/base/audio_converter.cc b/media/base/audio_converter.cc
index ec74e038a3bc7f4ded3073095fb259d451ec8237..d392c6d3f9f0c67e184dab520afcd86d4dc62fa7 100644
--- a/media/base/audio_converter.cc
+++ b/media/base/audio_converter.cc
@@ -55,7 +55,7 @@ AudioConverter::AudioConverter(const AudioParameters& input_params,
     resampler_.reset(new MultiChannelResampler(
         downmix_early_ ? output_params.channels() :
             input_params.channels(),
-        io_sample_rate_ratio, base::Bind(
+        io_sample_rate_ratio, 512, base::Bind(
             &AudioConverter::ProvideInput, base::Unretained(this))));
   }
 
@@ -72,9 +72,10 @@ AudioConverter::AudioConverter(const AudioParameters& input_params,
   // Since the resampler / output device may want a different buffer size than
   // the caller asked for, we need to use a FIFO to ensure that both sides
   // read in chunk sizes they're configured for.
-  if (resampler_.get() ||
+  // TODO(dalecurtis): Update comment.
+  if (!resampler_.get() &&
       input_params.frames_per_buffer() != output_params.frames_per_buffer()) {
-    DVLOG(1) << "Rebuffering from " << input_params.frames_per_buffer()
+    LOG(ERROR) << "Rebuffering from " << input_params.frames_per_buffer()
              << " to " << output_params.frames_per_buffer();
     audio_fifo_.reset(new AudioPullFifo(
         downmix_early_ ? output_params.channels() :