Pull string constants into separate .cc for split dll build

base/string_util.cc

Index: base/string_util.cc
diff --git a/base/string_util.cc b/base/string_util.cc
index 91a1c4caf1d1bde19faee4539dadba7177591841..4e96ba8bc5f95d33da9a1919c24c47264f768392 100644
--- a/base/string_util.cc
+++ b/base/string_util.cc
@@ -116,54 +116,6 @@ const string16& EmptyString16() {
   return EmptyStrings::GetInstance()->s16;
 }
 
-#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";
-
 template<typename STR>
 bool ReplaceCharsT(const STR& input,
                    const typename STR::value_type replace_chars[],