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..bd401f51b47cd16c48f68cbde52cad89935a2f84 100644
--- a/content/common/gpu/client/gpu_video_decode_accelerator_host.cc
+++ b/content/common/gpu/client/gpu_video_decode_accelerator_host.cc
@@ -56,6 +56,7 @@ bool GpuVideoDecodeAcceleratorHost::OnMessageReceived(const IPC::Message& msg) {
                         OnFlushDone)
     IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderHostMsg_ResetDone,
                         OnResetDone)
+    IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderHostMsg_CdmSet, OnCdmSet)
     IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderHostMsg_ErrorNotification,
                         OnNotifyError)
     IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderHostMsg_DismissPictureBuffer,
@@ -176,6 +177,13 @@ void GpuVideoDecodeAcceleratorHost::Reset() {
   Send(new AcceleratedVideoDecoderMsg_Reset(decoder_route_id_));
 }
 
+void GpuVideoDecodeAcceleratorHost::SetCdm(int cdm_id) {
+  DCHECK(CalledOnValidThread());
+  if (!channel_)
+    return;
+  Send(new AcceleratedVideoDecoderMsg_SetCdm(decoder_route_id_, cdm_id));
+}
+
 void GpuVideoDecodeAcceleratorHost::Destroy() {
   DCHECK(CalledOnValidThread());
   if (channel_)
@@ -260,6 +268,12 @@ void GpuVideoDecodeAcceleratorHost::OnResetDone() {
     client_->NotifyResetDone();
 }
 
+void GpuVideoDecodeAcceleratorHost::OnCdmSet(bool success) {
+  DCHECK(CalledOnValidThread());
+  if (client_)
+    client_->NotifyCdmSet(success);
+}
+
 void GpuVideoDecodeAcceleratorHost::OnNotifyError(uint32 error) {
   DCHECK(CalledOnValidThread());
   if (!client_)