Fix a bunch of -Wunused-but-set-variable warnings.

core/src/fxge/ge/fx_ge_text.cpp

 // 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
 
 #include "../../../include/fxge/fx_ge.h"
 #include "../../../include/fxge/fx_freetype.h"
 #include "../../../include/fxcodec/fx_codec.h"
 #include "text_int.h"
@@ skipping 1171 matching lines @@
         coords[0] = FXFT_Get_MM_Axis_Def(FXFT_Get_MM_Axis(pMasters, 0)) / 65536;
     } else {
         coords[0] = weight;
     }
     if (dest_width == 0) {
         coords[1] = FXFT_Get_MM_Axis_Def(FXFT_Get_MM_Axis(pMasters, 1)) / 65536;
     } else {
         int min_param = FXFT_Get_MM_Axis_Min(FXFT_Get_MM_Axis(pMasters, 1)) / 65536;
         int max_param = FXFT_Get_MM_Axis_Max(FXFT_Get_MM_Axis(pMasters, 1)) / 65536;
         coords[1] = min_param;
-        int error = FXFT_Set_MM_Design_Coordinates(m_Face, 2, coords);
-        error = FXFT_Load_Glyph(m_Face, glyph_index, FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH);
+        FXFT_Set_MM_Design_Coordinates(m_Face, 2, coords);

[Lei Zhang, 2015/04/17 00:34:10]

Maybe we should check here?

[Tom Sepez, 2015/04/17 16:20:17]

Maybe at least:
     (void) FXFT_Set_MM_Design_Coordinates(m_Face, 2, coords);
etc. to indicate deliberately ignoring error for now.

[Lei Zhang, 2015/05/08 05:40:38]

I'll try to fix this separately later.

+        FXFT_Load_Glyph(m_Face, glyph_index, FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH);
         int min_width = FXFT_Get_Glyph_HoriAdvance(m_Face) * 1000 / FXFT_Get_Face_UnitsPerEM(m_Face);
         coords[1] = max_param;
-        error = FXFT_Set_MM_Design_Coordinates(m_Face, 2, coords);
-        error = FXFT_Load_Glyph(m_Face, glyph_index, FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH);
+        FXFT_Set_MM_Design_Coordinates(m_Face, 2, coords);
+        FXFT_Load_Glyph(m_Face, glyph_index, FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH);
         int max_width = FXFT_Get_Glyph_HoriAdvance(m_Face) * 1000 / FXFT_Get_Face_UnitsPerEM(m_Face);
         if (max_width == min_width) {
             return;
         }
         int param = min_param + (max_param - min_param) * (dest_width - min_width) / (max_width - min_width);
         coords[1] = param;
     }
     FXFT_Free(m_Face, pMasters);
     FXFT_Set_MM_Design_Coordinates(m_Face, 2, coords);
 }
@@ skipping 467 matching lines @@
 {
     va_list argList;
     va_start(argList, count);
     for (int i = 0; i < count; i ++) {
         int p = va_arg(argList, int);
         ((FX_DWORD*)m_Key)[i] = p;
     }
     va_end(argList);
     m_KeyLen = count * sizeof(FX_DWORD);
 }