Revert of Move AppliedTextDecorationList to its own file.

third_party/WebKit/Source/core/style/AppliedTextDecorationList.h

Index: third_party/WebKit/Source/core/style/AppliedTextDecorationList.h
diff --git a/third_party/WebKit/Source/core/style/AppliedTextDecorationList.h b/third_party/WebKit/Source/core/style/AppliedTextDecorationList.h
deleted file mode 100644
index c2ad4ea1fa604578cc272c616395b0ae77803639..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/core/style/AppliedTextDecorationList.h
+++ /dev/null
@@ -1,17 +0,0 @@
-// 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.
-
-#ifndef AppliedTextDecorationList_h
-#define AppliedTextDecorationList_h
-
-#include "core/style/AppliedTextDecoration.h"
-#include "platform/wtf/RefVector.h"
-
-namespace blink {
-
-typedef RefVector<AppliedTextDecoration> AppliedTextDecorationList;
-
-}  // namespace blink
-
-#endif  // AppliedTextDecorationList_h