Reland: Move files in wtf/ to platform/wtf/ (Part 12).

third_party/WebKit/Source/wtf/Dummy.cpp

+// 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.
+
+// Now that all .cpp files are gone for target "wtf". However, this seems to
+// trigger a compile error on Mac. This file gives an empty object file and
+// should make Xcode's libtool happy...
+
+// And also, MSVC seems to fail to build a .lib file for wtf.dll if there is
+// no symbol to export.
+
+#include "wtf/build_config.h"
+
+#if OS(WIN)
+
+namespace WTF {
+
+__declspec(dllexport) int dummyExportedValueToForceMSVCToGenerateLibFile;
+
+}
+
+#endif