media: Support SetCdm() on VideoDecodeAccelerator interface.

content/common/gpu/client/gpu_video_decode_accelerator_host.cc

Index: content/common/gpu/client/gpu_video_decode_accelerator_host.cc
diff --git a/content/common/gpu/client/gpu_video_decode_accelerator_host.cc b/content/common/gpu/client/gpu_video_decode_accelerator_host.cc
index 41a4dbc1a1dac45037abcfcd92a77a68ee62770f..a329dcc54dce45b5524dbdef39ed211d297e4e46 100644
--- a/content/common/gpu/client/gpu_video_decode_accelerator_host.cc
+++ b/content/common/gpu/client/gpu_video_decode_accelerator_host.cc
@@ -46,6 +46,8 @@ bool GpuVideoDecodeAcceleratorHost::OnMessageReceived(const IPC::Message& msg) {
   DCHECK(CalledOnValidThread());
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(GpuVideoDecodeAcceleratorHost, msg)
+    IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderHostMsg_CdmAttached,
+                        OnCdmAttached)
     IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderHostMsg_BitstreamBufferProcessed,
                         OnBitstreamBufferProcessed)
     IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderHostMsg_ProvidePictureBuffers,
@@ -104,6 +106,13 @@ bool GpuVideoDecodeAcceleratorHost::Initialize(media::VideoCodecProfile profile,
   return true;
 }
 
+void GpuVideoDecodeAcceleratorHost::SetCdm(int cdm_id) {
+  DCHECK(CalledOnValidThread());
+  if (!channel_)
+    return;
+  Send(new AcceleratedVideoDecoderMsg_SetCdm(decoder_route_id_, cdm_id));
+}
+
 void GpuVideoDecodeAcceleratorHost::Decode(
     const media::BitstreamBuffer& bitstream_buffer) {
   DCHECK(CalledOnValidThread());
@@ -209,6 +218,12 @@ void GpuVideoDecodeAcceleratorHost::Send(IPC::Message* message) {
   }
 }
 
+void GpuVideoDecodeAcceleratorHost::OnCdmAttached(bool success) {
+  DCHECK(CalledOnValidThread());
+  if (client_)
+    client_->NotifyCdmAttached(success);
+}
+
 void GpuVideoDecodeAcceleratorHost::OnBitstreamBufferProcessed(
     int32 bitstream_buffer_id) {
   DCHECK(CalledOnValidThread());