media: Reland "Simplify {Audio|Video}Decoder initialization callback."

content/renderer/pepper/video_decoder_shim.cc

Index: content/renderer/pepper/video_decoder_shim.cc
diff --git a/content/renderer/pepper/video_decoder_shim.cc b/content/renderer/pepper/video_decoder_shim.cc
index ca5e551c8167238ef525e3fa34869a619461903e..b7bd4cec50cd15ce8a0b215b1ae0a55658b6b88a 100644
--- a/content/renderer/pepper/video_decoder_shim.cc
+++ b/content/renderer/pepper/video_decoder_shim.cc
@@ -633,7 +633,7 @@ class VideoDecoderShim::DecoderImpl {
   void Stop();
 
  private:
-  void OnPipelineStatus(media::PipelineStatus status);
+  void OnInitDone(bool success);
   void DoDecode();
   void OnDecodeComplete(media::VideoDecoder::Status status);
   void OnOutputComplete(const scoped_refptr<media::VideoFrame>& frame);
@@ -692,7 +692,7 @@ void VideoDecoderShim::DecoderImpl::Initialize(
 
   decoder_->Initialize(
       config, true /* low_delay */,
-      base::Bind(&VideoDecoderShim::DecoderImpl::OnPipelineStatus,
+      base::Bind(&VideoDecoderShim::DecoderImpl::OnInitDone,
                  weak_ptr_factory_.GetWeakPtr()),
       base::Bind(&VideoDecoderShim::DecoderImpl::OnOutputComplete,
                  weak_ptr_factory_.GetWeakPtr()));
@@ -731,20 +731,8 @@ void VideoDecoderShim::DecoderImpl::Stop() {
   // This instance is deleted once we exit this scope.
 }
 
-void VideoDecoderShim::DecoderImpl::OnPipelineStatus(
-    media::PipelineStatus status) {
-  int32_t result;
-  switch (status) {
-    case media::PIPELINE_OK:
-      result = PP_OK;
-      break;
-    case media::DECODER_ERROR_NOT_SUPPORTED:
-      result = PP_ERROR_NOTSUPPORTED;
-      break;
-    default:
-      result = PP_ERROR_FAILED;
-      break;
-  }
+void VideoDecoderShim::DecoderImpl::OnInitDone(bool success) {
+  int32_t result = success ? PP_OK : PP_ERROR_NOTSUPPORTED;
 
   // Calculate how many textures the shim should create.
   uint32_t shim_texture_pool_size = media::limits::kMaxVideoFrames + 1;