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

third_party/WebKit/Source/modules/webgl/GLStringQuery.h

 // Copyright 2010 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.
 
 #ifndef GLStringQuery_h
 #define GLStringQuery_h
 
 #include "gpu/command_buffer/client/gles2_interface.h"
 #include "wtf/text/WTFString.h"
 
@@ skipping 51 matching lines @@
     }
   };
 
   GLStringQuery(gpu::gles2::GLES2Interface* gl) : m_gl(gl) {}
 
   template <class Traits>
   WTF::String Run(GLuint id) {
     GLint length = 0;
     Traits::LengthFunction(m_gl, id, &length);
     if (!length)
-      return WTF::emptyString();
+      return WTF::emptyString;
     LChar* logPtr;
     RefPtr<WTF::StringImpl> nameImpl =
         WTF::StringImpl::createUninitialized(length, logPtr);
     GLsizei returnedLength = 0;
     Traits::LogFunction(m_gl, id, length, &returnedLength, logPtr);
     // The returnedLength excludes the null terminator. If this check wasn't
     // true, then we'd need to tell the returned String the real length.
     DCHECK_EQ(returnedLength + 1, length);
     return String(nameImpl.release());
   }
 
  private:
   gpu::gles2::GLES2Interface* m_gl;
 };
 
 }  // namespace blink
 #endif  // GLStringQuery_h