MJPEG acceleration for video capture using VAAPI, the GPU host part

content/common/gpu/client/gpu_channel_host.h

Index: content/common/gpu/client/gpu_channel_host.h
diff --git a/content/common/gpu/client/gpu_channel_host.h b/content/common/gpu/client/gpu_channel_host.h
index 4ec2e06d2bdad744da832c4d4f674128192835ca..e32dd5635a9e15af9d3f82facb1d944b33474f64 100644
--- a/content/common/gpu/client/gpu_channel_host.h
+++ b/content/common/gpu/client/gpu_channel_host.h
@@ -23,6 +23,7 @@
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_sync_channel.h"
 #include "ipc/message_filter.h"
+#include "media/video/jpeg_decode_accelerator.h"
 #include "ui/events/latency_info.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/gpu_memory_buffer.h"
@@ -43,6 +44,7 @@ class SyncMessageFilter;
 }
 
 namespace media {
+class JpegDecodeAccelerator;
 class VideoDecodeAccelerator;
 class VideoEncodeAccelerator;
 }
@@ -147,6 +149,10 @@ class GpuChannelHost : public IPC::Sender,
   scoped_ptr<media::VideoEncodeAccelerator> CreateVideoEncoder(
       int command_buffer_route_id);
 
+  // Creates a JPEG decoder in the GPU process.
+  scoped_ptr<media::JpegDecodeAccelerator> CreateJpegDecoder(
+      media::JpegDecodeAccelerator::Client* client);
+
   // Destroy a command buffer created by this channel.
   void DestroyCommandBuffer(CommandBufferProxyImpl* command_buffer);