Update AudioRenderer, VideoRenderer, and AudioDecoder Initialize() methods to use PipelineStatusCB.

media/base/pipeline.cc

Index: media/base/pipeline.cc
diff --git a/media/base/pipeline.cc b/media/base/pipeline.cc
index fb84f2cd639722f27124b932e5ac6e8ec079440f..359472f5aa198b950761f02c1271b732ada963c4 100644
--- a/media/base/pipeline.cc
+++ b/media/base/pipeline.cc
@@ -1175,7 +1175,7 @@ bool Pipeline::InitializeAudioDecoder(
   pipeline_init_state_->audio_decoder_ = audio_decoder;
   audio_decoder->Initialize(
       stream,
-      base::Bind(&Pipeline::OnFilterInitialize, this, PIPELINE_OK),
+      base::Bind(&Pipeline::OnFilterInitialize, this),
       base::Bind(&Pipeline::OnUpdateStatistics, this));
   return true;
 }
@@ -1231,7 +1231,7 @@ bool Pipeline::InitializeAudioRenderer(
 
   audio_renderer_->Initialize(
       decoder,
-      base::Bind(&Pipeline::OnFilterInitialize, this, PIPELINE_OK),
+      base::Bind(&Pipeline::OnFilterInitialize, this),
       base::Bind(&Pipeline::OnAudioUnderflow, this));
   return true;
 }
@@ -1255,7 +1255,7 @@ bool Pipeline::InitializeVideoRenderer(
 
   video_renderer_->Initialize(
       decoder,
-      base::Bind(&Pipeline::OnFilterInitialize, this, PIPELINE_OK),
+      base::Bind(&Pipeline::OnFilterInitialize, this),
       base::Bind(&Pipeline::OnUpdateStatistics, this));
   return true;
 }