media: Support creation and SetCdm() for mojo based CDM.

media/mojo/services/mojo_renderer_impl.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/mojo/services/mojo_renderer_impl.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 66 matching lines @@
       audio_stream.Pass(),
       video_stream.Pass(),
       BindToCurrentLoop(base::Bind(&MojoRendererImpl::OnInitialized,
                                    weak_factory_.GetWeakPtr())));
 }
 
 void MojoRendererImpl::SetCdm(CdmContext* cdm_context,
                               const CdmAttachedCB& cdm_attached_cb) {
   DVLOG(1) << __FUNCTION__;
   DCHECK(task_runner_->BelongsToCurrentThread());
-  NOTIMPLEMENTED();
-  cdm_attached_cb.Run(false);
+
+  int32_t cdm_id = cdm_context->GetCdmId();
+  if (cdm_id == CdmContext::kInvalidCdmId) {
+    cdm_attached_cb.Run(false);
+    return;
+  }
+
+  remote_media_renderer_->SetCdm(cdm_id, cdm_attached_cb);
 }
 
 void MojoRendererImpl::Flush(const base::Closure& flush_cb) {
   DVLOG(2) << __FUNCTION__;
   DCHECK(task_runner_->BelongsToCurrentThread());
   remote_media_renderer_->Flush(flush_cb);
 }
 
 void MojoRendererImpl::StartPlayingFrom(base::TimeDelta time) {
   DVLOG(2) << __FUNCTION__;
@@ skipping 102 matching lines @@
 
 void MojoRendererImpl::OnInitialized() {
   DVLOG(1) << __FUNCTION__;
   DCHECK(task_runner_->BelongsToCurrentThread());
   DCHECK(!init_cb_.is_null());
 
   base::ResetAndReturn(&init_cb_).Run();
 }
 
 }  // namespace media