media: Support SetCdm() on VideoDecodeAccelerator interface.

content/common/gpu/media/android_video_decode_accelerator.cc

Index: content/common/gpu/media/android_video_decode_accelerator.cc
diff --git a/content/common/gpu/media/android_video_decode_accelerator.cc b/content/common/gpu/media/android_video_decode_accelerator.cc
index 67b12595e63c98a88315ee1af234df1f183caeaa..8a0f7db1482e42716f03a58977aadcd920ded71c 100644
--- a/content/common/gpu/media/android_video_decode_accelerator.cc
+++ b/content/common/gpu/media/android_video_decode_accelerator.cc
@@ -138,6 +138,12 @@ bool AndroidVideoDecodeAccelerator::Initialize(media::VideoCodecProfile profile,
   return true;
 }
 
+void AndroidVideoDecodeAccelerator::SetCdm(int /* cdm_id */) {
+  // TODO(xhwang): Implement CDM setting here.
+  NOTIMPLEMENTED();
+  NotifyCdmAttached(false);
+}
+
 void AndroidVideoDecodeAccelerator::DoIOTask() {
   DCHECK(thread_checker_.CalledOnValidThread());
   TRACE_EVENT0("media", "AVDA::DoIOTask");
@@ -583,6 +589,10 @@ void AndroidVideoDecodeAccelerator::PostError(
   state_ = ERROR;
 }
 
+void AndroidVideoDecodeAccelerator::NotifyCdmAttached(bool success) {
+  client_->NotifyCdmAttached(success);
+}
+
 void AndroidVideoDecodeAccelerator::NotifyPictureReady(
     const media::Picture& picture) {
   client_->PictureReady(picture);