Pull string constants into separate .cc for split dll build

base/string_util_constants.cc

+// 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 "base/string_util.h"
+
+#define WHITESPACE_UNICODE \
+  0x0009, /* <control-0009> to <control-000D> */ \
+  0x000A,                                        \
+  0x000B,                                        \
+  0x000C,                                        \
+  0x000D,                                        \
+  0x0020, /* Space */                            \
+  0x0085, /* <control-0085> */                   \
+  0x00A0, /* No-Break Space */                   \
+  0x1680, /* Ogham Space Mark */                 \
+  0x180E, /* Mongolian Vowel Separator */        \
+  0x2000, /* En Quad to Hair Space */            \
+  0x2001,                                        \
+  0x2002,                                        \
+  0x2003,                                        \
+  0x2004,                                        \
+  0x2005,                                        \
+  0x2006,                                        \
+  0x2007,                                        \
+  0x2008,                                        \
+  0x2009,                                        \
+  0x200A,                                        \
+  0x200C, /* Zero Width Non-Joiner */            \
+  0x2028, /* Line Separator */                   \
+  0x2029, /* Paragraph Separator */              \
+  0x202F, /* Narrow No-Break Space */            \
+  0x205F, /* Medium Mathematical Space */        \
+  0x3000, /* Ideographic Space */                \
+  0
+
+const wchar_t kWhitespaceWide[] = {
+  WHITESPACE_UNICODE
+};
+
+const char16 kWhitespaceUTF16[] = {
+  WHITESPACE_UNICODE
+};
+
+const char kWhitespaceASCII[] = {
+  0x09,    // <control-0009> to <control-000D>
+  0x0A,
+  0x0B,
+  0x0C,
+  0x0D,
+  0x20,    // Space
+  0
+};
+
+const char kUtf8ByteOrderMark[] = "\xEF\xBB\xBF";