FX_NAMESPACE_DECLARE pointless.

core/include/fxcrt/fx_basic.h

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #ifndef CORE_INCLUDE_FXCRT_FX_BASIC_H_
 #define CORE_INCLUDE_FXCRT_FX_BASIC_H_
 
 #include "fx_memory.h"
@@ skipping 1075 matching lines @@
     CFX_DWordListArray;
 typedef enum {
   Ready,
   ToBeContinued,
   Found,
   NotFound,
   Failed,
   Done
 } FX_ProgressiveStatus;
 #define ProgressiveStatus FX_ProgressiveStatus
-#define FX_NAMESPACE_DECLARE(namespace, type) namespace ::type
 
 class CFX_Vector_3by1 {
  public:
   CFX_Vector_3by1() : a(0.0f), b(0.0f), c(0.0f) {}
 
   CFX_Vector_3by1(FX_FLOAT a1, FX_FLOAT b1, FX_FLOAT c1)
       : a(a1), b(b1), c(c1) {}
 
   FX_FLOAT a;
   FX_FLOAT b;
@@ skipping 34 matching lines @@
   FX_FLOAT c;
   FX_FLOAT d;
   FX_FLOAT e;
   FX_FLOAT f;
   FX_FLOAT g;
   FX_FLOAT h;
   FX_FLOAT i;
 };
 
 #endif  // CORE_INCLUDE_FXCRT_FX_BASIC_H_