media: Support SetCdm() on VideoDecodeAccelerator interface.

content/common/gpu/media/gpu_video_decode_accelerator.cc

Index: content/common/gpu/media/gpu_video_decode_accelerator.cc
diff --git a/content/common/gpu/media/gpu_video_decode_accelerator.cc b/content/common/gpu/media/gpu_video_decode_accelerator.cc
index 302caea392dc8823a23c359aeed7a0c4cca9769c..a1eb6efa208d0cad993c8577a3308e08d27ed8ff 100644
--- a/content/common/gpu/media/gpu_video_decode_accelerator.cc
+++ b/content/common/gpu/media/gpu_video_decode_accelerator.cc
@@ -164,6 +164,7 @@ bool GpuVideoDecodeAccelerator::OnMessageReceived(const IPC::Message& msg) {
                         OnReusePictureBuffer)
     IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderMsg_Flush, OnFlush)
     IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderMsg_Reset, OnReset)
+    IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderMsg_SetCdm, OnSetCdm)
     IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderMsg_Destroy, OnDestroy)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
@@ -549,6 +550,11 @@ void GpuVideoDecodeAccelerator::OnReset() {
   video_decode_accelerator_->Reset();
 }
 
+void GpuVideoDecodeAccelerator::OnSetCdm(int cdm_id) {
+  DCHECK(video_decode_accelerator_.get());

[dcheng, 2015/11/12 18:48:43]

Nit: no .get() when testing a smart pointer

[xhwang, 2015/11/13 01:16:55]

Done.

+  video_decode_accelerator_->SetCdm(cdm_id);
+}
+
 void GpuVideoDecodeAccelerator::OnDestroy() {
   DCHECK(video_decode_accelerator_.get());
   OnWillDestroyStub();
@@ -580,6 +586,11 @@ void GpuVideoDecodeAccelerator::NotifyResetDone() {
     DLOG(ERROR) << "Send(AcceleratedVideoDecoderHostMsg_ResetDone) failed";
 }
 
+void GpuVideoDecodeAccelerator::NotifyCdmSet(bool success) {
+  if (!Send(new AcceleratedVideoDecoderHostMsg_CdmSet(host_route_id_, success)))
+    DLOG(ERROR) << "Send(AcceleratedVideoDecoderHostMsg_CdmSet) failed";
+}
+
 void GpuVideoDecodeAccelerator::OnWillDestroyStub() {
   // The stub is going away, so we have to stop and destroy VDA here, before
   // returning, because the VDA may need the GL context to run and/or do its