Allow CastContentBrowserClient to customise media pipeline device

chromecast/browser/media/media_pipeline_host.cc

Index: chromecast/browser/media/media_pipeline_host.cc
diff --git a/chromecast/browser/media/media_pipeline_host.cc b/chromecast/browser/media/media_pipeline_host.cc
index ff3eb6926f9f567f0105f8496d637f80f457a86f..e3e58e162e95989284b293c1145bba0deba86d59 100644
--- a/chromecast/browser/media/media_pipeline_host.cc
+++ b/chromecast/browser/media/media_pipeline_host.cc
@@ -52,15 +52,15 @@ MediaPipelineHost::~MediaPipelineHost() {
 
 void MediaPipelineHost::Initialize(
     LoadType load_type,
-    const MediaPipelineClient& client) {
+    const MediaPipelineClient& client,
+    const media::CreatePipelineDeviceCB& create_pipeline_device_cb) {
   DCHECK(thread_checker_.CalledOnValidThread());
   media_pipeline_.reset(new MediaPipelineImpl());
   MediaPipelineDeviceParams default_parameters;
   if (load_type == kLoadTypeMediaStream)
     default_parameters.sync_type = MediaPipelineDeviceParams::kModeIgnorePts;
   media_pipeline_->Initialize(
-      load_type,
-      CreateMediaPipelineDevice(default_parameters).Pass());
+      load_type, create_pipeline_device_cb.Run(default_parameters).Pass());
   media_pipeline_->SetClient(client);
 }
 
@@ -171,4 +171,3 @@ void MediaPipelineHost::NotifyPipeWrite(TrackId track_id) {
 
 }  // namespace media
 }  // namespace chromecast
-