Remove VideoDecodeAccelerator::SetCdm() and pass the cdm in Initialize()

media/gpu/ipc/service/gpu_video_decode_accelerator.cc

Index: media/gpu/ipc/service/gpu_video_decode_accelerator.cc
diff --git a/media/gpu/ipc/service/gpu_video_decode_accelerator.cc b/media/gpu/ipc/service/gpu_video_decode_accelerator.cc
index 18a17de2725e456f53a3ba4c121cd2632c177619..58a8845b8fb7594fadba45d6c47d44913112f4ae 100644
--- a/media/gpu/ipc/service/gpu_video_decode_accelerator.cc
+++ b/media/gpu/ipc/service/gpu_video_decode_accelerator.cc
@@ -196,7 +196,6 @@ bool GpuVideoDecodeAccelerator::OnMessageReceived(const IPC::Message& msg) {
 
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(GpuVideoDecodeAccelerator, msg)
-    IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderMsg_SetCdm, OnSetCdm)
     IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderMsg_Decode, OnDecode)
     IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderMsg_AssignPictureBuffers,
                         OnAssignPictureBuffers)
@@ -375,11 +374,6 @@ bool GpuVideoDecodeAccelerator::Initialize(
   return true;
 }
 
-void GpuVideoDecodeAccelerator::OnSetCdm(int cdm_id) {
-  DCHECK(video_decode_accelerator_);
-  video_decode_accelerator_->SetCdm(cdm_id);
-}
-
 // Runs on IO thread if VDA::TryToSetupDecodeOnSeparateThread() succeeded,
 // otherwise on the main thread.
 void GpuVideoDecodeAccelerator::OnDecode(