Replace or remove _FX control-flow defines

xfa/include/fxgraphics/fx_graphics.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 XFA_INCLUDE_FXGRAPHICS_FX_GRAPHICS_H_
 #define XFA_INCLUDE_FXGRAPHICS_FX_GRAPHICS_H_
 
 #include "core/include/fpdfapi/fpdf_pageobj.h"
 
 typedef int FX_ERR;
 #define FX_ERR_Succeeded 0
 #define FX_ERR_Indefinite -1
 #define FX_ERR_Parameter_Invalid -100
 #define FX_ERR_Property_Invalid -200
 #define FX_ERR_Intermediate_Value_Invalid -300
 #define FX_ERR_Method_Not_Supported -400
 #define FX_ERR_Out_Of_Memory -500
-#define _FX_RETURN_IF_FAIL(arg) \
-  {                             \
-    if (!(arg))                 \
-      return;                   \
-  }
-#define _FX_RETURN_VALUE_IF_FAIL(arg, val) \
-  {                                        \
-    if (!(arg))                            \
-      return val;                          \
-  }
-#define _FX_GOTO_POSITION_IF_FAIL(arg, pos) \
-  {                                         \
-    if (!(arg))                             \
-      goto pos;                             \
-  }
-#define _FX_ERR_CHECK_RETURN_IF_FAIL(arg) \
-  {                                       \
-    if ((arg) != FX_ERR_Succeeded)        \
-      return;                             \
-  }
-#define _FX_ERR_CHECK_RETURN_VALUE_IF_FAIL(arg, val) \
-  {                                                  \
-    if ((arg) != FX_ERR_Succeeded)                   \
-      return val;                                    \
-  }
-#define _FX_ERR_CHECK_GOTO_POSITION_IF_FAIL(arg, pos) \
-  {                                                   \
-    if ((arg) != FX_ERR_Succeeded)                    \
-      goto pos;                                       \
-  }
 
 #define FX_SHADING_Steps 256
 typedef int32_t FX_DashStyle;
 enum {
   FX_DASHSTYLE_Solid = 0,
   FX_DASHSTYLE_Dash = 1,
   FX_DASHSTYLE_Dot = 2,
   FX_DASHSTYLE_DashDot = 3,
   FX_DASHSTYLE_DashDotDot = 4
 };
@@ skipping 432 matching lines @@
   FX_FLOAT _endRadius;
   FX_BOOL _isExtendedBegin;
   FX_BOOL _isExtendedEnd;
   FX_ARGB _beginArgb;
   FX_ARGB _endArgb;
   FX_ARGB _argbArray[FX_SHADING_Steps];
   friend class CFX_Graphics;
 };
 
 #endif  // XFA_INCLUDE_FXGRAPHICS_FX_GRAPHICS_H_