media: Rename MediaKeys to ContentDecryptionModule

media/base/media_keys.cc

Index: media/base/media_keys.cc
diff --git a/media/base/media_keys.cc b/media/base/media_keys.cc
deleted file mode 100644
index 103703ec72845e6c3c71496d74b3ef83815afec5..0000000000000000000000000000000000000000
--- a/media/base/media_keys.cc
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright 2013 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/media_keys.h"
-
-namespace media {
-
-MediaKeys::MediaKeys() {}
-
-MediaKeys::~MediaKeys() {}
-
-CdmContext* MediaKeys::GetCdmContext() {
-  return nullptr;
-}
-
-void MediaKeys::DeleteOnCorrectThread() const {
-  delete this;
-}
-
-// static
-void MediaKeysTraits::Destruct(const MediaKeys* media_keys) {
-  media_keys->DeleteOnCorrectThread();
-}
-
-}  // namespace media