Report CHECK/DCHECK to test launcher summary output.

base/strings/string_piece_forward.h

+// 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.
+// Forward declaration of StringPiece types from base/strings/string_piece.h
+
+#ifndef BASE_STRINGS_STRING_PIECE_FORWARD_H_
+#define BASE_STRINGS_STRING_PIECE_FORWARD_H_
+
+#include <string>
+
+#include "base/strings/string16.h"
+
+namespace base {
+
+template <typename STRING_TYPE>
+class BasicStringPiece;
+typedef BasicStringPiece<std::string> StringPiece;
+typedef BasicStringPiece<string16> StringPiece16;
+
+}  // namespace base
+
+#endif  // BASE_STRINGS_STRING_PIECE_FORWARD_H_