media: Plumb MediaLog to MojoVideoDecoderService.

media/mojo/services/mojo_media_log.cc

+// Copyright 2017 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_media_log.h"
+
+#include "base/logging.h"
+
+namespace media {
+
+// TODO(sandersd): Do we need to respond to the channel closing?
+MojoMediaLog::MojoMediaLog(
+    mojo::AssociatedInterfacePtr<mojom::MediaLog> remote_media_log)
+    : remote_media_log_(std::move(remote_media_log)) {
+  DVLOG(1) << __func__;
+}
+
+MojoMediaLog::~MojoMediaLog() {
+  DVLOG(1) << __func__;
+}
+
+void MojoMediaLog::AddEvent(std::unique_ptr<MediaLogEvent> event) {
+  DVLOG(1) << __func__;
+  DCHECK(event);
+  remote_media_log_->AddEvent(*event);
+}
+
+}  // namespace media