media: Add MediaDrmBridgeCdmContext.

media/base/android/media_drm_bridge_cdm_context.cc

+// Copyright 2016 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/base/android/media_drm_bridge_cdm_context.h"
+
+#include "media/base/android/media_drm_bridge.h"
+
+namespace media {
+
+MediaDrmBridgeCdmContext::MediaDrmBridgeCdmContext(
+    MediaDrmBridge* media_drm_bridge)
+    : media_drm_bridge_(media_drm_bridge) {
+  DCHECK(media_drm_bridge_);
+}
+
+MediaDrmBridgeCdmContext::~MediaDrmBridgeCdmContext() {}
+
+Decryptor* MediaDrmBridgeCdmContext::GetDecryptor() {
+  return nullptr;
+}
+
+int MediaDrmBridgeCdmContext::GetCdmId() const {
+  return kInvalidCdmId;
+}
+
+int MediaDrmBridgeCdmContext::RegisterPlayer(
+    const base::Closure& new_key_cb,
+    const base::Closure& cdm_unset_cb) {
+  return media_drm_bridge_->RegisterPlayer(new_key_cb, cdm_unset_cb);
+}
+
+void MediaDrmBridgeCdmContext::UnregisterPlayer(int registration_id) {
+  media_drm_bridge_->UnregisterPlayer(registration_id);
+}
+
+void MediaDrmBridgeCdmContext::SetMediaCryptoReadyCB(
+    const MediaCryptoReadyCB& media_crypto_ready_cb) {
+  media_drm_bridge_->SetMediaCryptoReadyCB(media_crypto_ready_cb);
+}
+
+}  // namespace media