Add Mojo interfaces for GpuJpegDecodeAccelerator and GpuJpegDecodeAcceleratorHost

media/gpu/ipc/client/gpu_jpeg_decode_accelerator_host.h

Index: media/gpu/ipc/client/gpu_jpeg_decode_accelerator_host.h
diff --git a/media/gpu/ipc/client/gpu_jpeg_decode_accelerator_host.h b/media/gpu/ipc/client/gpu_jpeg_decode_accelerator_host.h
index 4293961fba0078594c8e200a4cfa836b22a9f87f..e6665d41810d5096161725b2abc9c7dcf2984928 100644
--- a/media/gpu/ipc/client/gpu_jpeg_decode_accelerator_host.h
+++ b/media/gpu/ipc/client/gpu_jpeg_decode_accelerator_host.h
@@ -11,7 +11,8 @@
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
-#include "base/threading/non_thread_safe.h"
+#include "base/threading/thread_checker.h"
+#include "media/gpu/mojo/jpeg_decoder.mojom.h"
 #include "media/video/jpeg_decode_accelerator.h"
 
 namespace base {
@@ -29,10 +30,13 @@ class Message;
 
 namespace media {
 
+// TODO(c.padhi): Move GpuJpegDecodeAcceleratorHost to media/gpu/mojo, see
+// http://crbug.com/699255.
 // This class is used to talk to JpegDecodeAccelerator in the GPU process
 // through IPC messages.
-class GpuJpegDecodeAcceleratorHost : public JpegDecodeAccelerator,
-                                     public base::NonThreadSafe {
+class GpuJpegDecodeAcceleratorHost
+    : public JpegDecodeAccelerator,
+      public mojom::GpuJpegDecodeAcceleratorClient {
  public:
   GpuJpegDecodeAcceleratorHost(
       scoped_refptr<gpu::GpuChannelHost> channel,
@@ -48,6 +52,9 @@ class GpuJpegDecodeAcceleratorHost : public JpegDecodeAccelerator,
               const scoped_refptr<VideoFrame>& video_frame) override;
   bool IsSupported() override;
 
+  // mojom::GpuJpegDecodeAcceleratorClient implementation.
+  void OnDecodeAck(int32_t bitstream_buffer_id, mojom::Error error) override;
+
   base::WeakPtr<IPC::Listener> GetReceiver();
 
  private:
@@ -65,6 +72,7 @@ class GpuJpegDecodeAcceleratorHost : public JpegDecodeAccelerator,
 
   std::unique_ptr<Receiver> receiver_;
 
+  THREAD_CHECKER(thread_checker_);
   DISALLOW_COPY_AND_ASSIGN(GpuJpegDecodeAcceleratorHost);
 };