[NotForReview] Convert accelerated JPEG Decoder IPC to Mojo

content/browser/renderer_host/media/video_capture_gpu_jpeg_decoder.h

Index: content/browser/renderer_host/media/video_capture_gpu_jpeg_decoder.h
diff --git a/content/browser/renderer_host/media/video_capture_gpu_jpeg_decoder.h b/content/browser/renderer_host/media/video_capture_gpu_jpeg_decoder.h
index 04ef6ca257a88eb62db2f90370cd6391e464ea2b..8a7b5131c5f3c3a898653690722aa7910de92e27 100644
--- a/content/browser/renderer_host/media/video_capture_gpu_jpeg_decoder.h
+++ b/content/browser/renderer_host/media/video_capture_gpu_jpeg_decoder.h
@@ -22,10 +22,6 @@
 #include "media/capture/video/video_capture_jpeg_decoder.h"
 #include "media/video/jpeg_decode_accelerator.h"
 
-namespace gpu {
-class GpuChannelHost;
-}
-
 namespace content {
 
 // Adapter to GpuJpegDecodeAccelerator for VideoCaptureDevice::Client. It takes
@@ -66,27 +62,12 @@ class CONTENT_EXPORT VideoCaptureGpuJpegDecoder
                    media::JpegDecodeAccelerator::Error error) override;
 
  private:
-  // Initialization helper, to establish GPU channel.
-  static void EstablishGpuChannelOnUIThread(
-      const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
-      base::WeakPtr<VideoCaptureGpuJpegDecoder> weak_this);
-
-  static void GpuChannelEstablishedOnUIThread(
-      const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
-      base::WeakPtr<VideoCaptureGpuJpegDecoder> weak_this,
-      scoped_refptr<gpu::GpuChannelHost> established_channel_host);
-
-  void FinishInitialization(
-      scoped_refptr<gpu::GpuChannelHost> gpu_channel_host);
-
   // Returns true if the decoding of last frame is not finished yet.
   bool IsDecoding_Locked() const;
 
   // Records |decoder_status_| to histogram.
   void RecordInitDecodeUMA_Locked();
 
-  scoped_refptr<gpu::GpuChannelHost> gpu_channel_host_;
-
   // The underlying JPEG decode accelerator.
   std::unique_ptr<media::JpegDecodeAccelerator> decoder_;