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

third_party/WebKit/Source/core/svg/SVGTransform.cpp

 /*
  * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 135 matching lines @@
   return "";
 }
 
 }  // namespace
 
 String SVGTransform::valueAsString() const {
   double arguments[6];
   size_t argumentCount = 0;
   switch (m_transformType) {
     case kSvgTransformUnknown:
-      return emptyString();
+      return emptyString;
     case kSvgTransformMatrix: {
       arguments[argumentCount++] = m_matrix.a();
       arguments[argumentCount++] = m_matrix.b();
       arguments[argumentCount++] = m_matrix.c();
       arguments[argumentCount++] = m_matrix.d();
       arguments[argumentCount++] = m_matrix.e();
       arguments[argumentCount++] = m_matrix.f();
       break;
     }
     case kSvgTransformTranslate: {
@@ skipping 65 matching lines @@
 }
 
 float SVGTransform::calculateDistance(SVGPropertyBase*, SVGElement*) {
   // SVGTransform is not animated by itself.
   ASSERT_NOT_REACHED();
 
   return -1;
 }
 
 }  // namespace blink