Replace WTF::emptyString{16Bit}() with a static global

third_party/WebKit/Source/platform/text/LocaleWin.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 452 matching lines @@
   String negativeSign = getLocaleInfoString(LOCALE_SNEGATIVESIGN);
   enum NegativeFormat {
     NegativeFormatParenthesis = 0,
     NegativeFormatSignPrefix = 1,
     NegativeFormatSignSpacePrefix = 2,
     NegativeFormatSignSuffix = 3,
     NegativeFormatSpaceSignSuffix = 4,
   };
   DWORD negativeFormat = NegativeFormatSignPrefix;
   getLocaleInfo(LOCALE_INEGNUMBER, negativeFormat);
-  String negativePrefix = emptyString();
-  String negativeSuffix = emptyString();
+  String negativePrefix = emptyString;
+  String negativeSuffix = emptyString;
   switch (negativeFormat) {
     case NegativeFormatParenthesis:
       negativePrefix = "(";
       negativeSuffix = ")";
       break;
     case NegativeFormatSignSpacePrefix:
       negativePrefix = negativeSign + " ";
       break;
     case NegativeFormatSignSuffix:
       negativeSuffix = negativeSign;
       break;
     case NegativeFormatSpaceSignSuffix:
       negativeSuffix = " " + negativeSign;
       break;
     case NegativeFormatSignPrefix:  // Fall through.
     default:
       negativePrefix = negativeSign;
       break;
   }
   m_didInitializeNumberData = true;
-  setLocaleData(symbols, emptyString(), emptyString(), negativePrefix,
+  setLocaleData(symbols, emptyString, emptyString, negativePrefix,
                 negativeSuffix);
 }
 }