Reduce jitter from uneven SincResampler buffer size requests.

media/base/fake_audio_render_callback.cc

Index: media/base/fake_audio_render_callback.cc
diff --git a/media/base/fake_audio_render_callback.cc b/media/base/fake_audio_render_callback.cc
index af55910873c0efbd9a1f0c81920a3d2629f80df0..5a0979e9ea0203ff316dc53545ef6a0d6d32d09c 100644
--- a/media/base/fake_audio_render_callback.cc
+++ b/media/base/fake_audio_render_callback.cc
@@ -43,7 +43,7 @@ int FakeAudioRenderCallback::Render(AudioBus* audio_bus,
 
 double FakeAudioRenderCallback::ProvideInput(AudioBus* audio_bus,
                                              base::TimeDelta buffer_delay) {
-  Render(audio_bus, buffer_delay.InMilliseconds());
+  Render(audio_bus, buffer_delay.InMillisecondsF() + 0.5);
   return volume_;
 }