Handle invalid hardware output parameters in AudioRendererHost.

media/renderers/audio_renderer_impl.cc

Index: media/renderers/audio_renderer_impl.cc
diff --git a/media/renderers/audio_renderer_impl.cc b/media/renderers/audio_renderer_impl.cc
index 9a0cdf9503c2ecb7f11a6d63fdc57355bcfb3af1..8c42a4889f7a69596bc77d1460749a17950db7d0 100644
--- a/media/renderers/audio_renderer_impl.cc
+++ b/media/renderers/audio_renderer_impl.cc
@@ -339,7 +339,8 @@ void AudioRendererImpl::Initialize(
 
   const AudioParameters& hw_params = hardware_config_.GetOutputConfig();
   expecting_config_changes_ = stream->SupportsConfigChanges();
-  if (!expecting_config_changes_ || !hw_params.IsValid()) {
+  if (!expecting_config_changes_ || !hw_params.IsValid() ||
+      hw_params.format() == AudioParameters::AUDIO_FAKE) {
     // The actual buffer size is controlled via the size of the AudioBus
     // provided to Render(), so just choose something reasonable here for looks.
     int buffer_size = stream->audio_decoder_config().samples_per_second() / 100;