Merge to XFA: Extern in .cpp files is a code smell, part 1.

core/src/fpdftext/unicodenormalizationdata.h

Index: core/src/fpdftext/unicodenormalizationdata.h
diff --git a/core/src/fpdftext/unicodenormalizationdata.h b/core/src/fpdftext/unicodenormalizationdata.h
new file mode 100644
index 0000000000000000000000000000000000000000..1970f87ab3bd90006ee962cc7fc5240c5cf8e134
--- /dev/null
+++ b/core/src/fpdftext/unicodenormalizationdata.h
@@ -0,0 +1,18 @@
+// Copyright 2015 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#ifndef CORE_SRC_FPDFTEXT_UNICODENORMALIZATIONDATA_H_
+#define CORE_SRC_FPDFTEXT_UNICODENORMALIZATIONDATA_H_
+
+#include "../../include/fxcrt/fx_system.h"
+
+extern const FX_WCHAR g_UnicodeData_Normalization[];
+extern const FX_WCHAR g_UnicodeData_Normalization_Map1[];
+extern const FX_WCHAR g_UnicodeData_Normalization_Map2[];
+extern const FX_WCHAR g_UnicodeData_Normalization_Map3[];
+extern const FX_WCHAR g_UnicodeData_Normalization_Map4[];
+
+#endif  // CORE_SRC_FPDFTEXT_UNICODENORMALIZATIONDATA_H_