Fix a bunch of sign mismatch warnings.

core/src/fpdfapi/fpdf_render/fpdf_render_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/fpdfapi/fpdf_render.h"
 #include "../../../include/fpdfapi/fpdf_pageobj.h"
 #include "../fpdf_page/pageint.h"
@@ skipping 507 matching lines @@
   CPDF_CharPosList();
   ~CPDF_CharPosList();
   void Load(int nChars,
             FX_DWORD* pCharCodes,
             FX_FLOAT* pCharPos,
             CPDF_Font* pFont,
             FX_FLOAT font_size);
   FXTEXT_CHARPOS* m_pCharPos;
   FX_DWORD m_nChars;
 };
-FX_FLOAT _CIDTransformToFloat(uint8_t ch);
+
 CPDF_CharPosList::CPDF_CharPosList() {
   m_pCharPos = NULL;
 }
 CPDF_CharPosList::~CPDF_CharPosList() {
   FX_Free(m_pCharPos);
 }
 void CPDF_CharPosList::Load(int nChars,
                             FX_DWORD* pCharCodes,
                             FX_FLOAT* pCharPos,
                             CPDF_Font* pFont,
@@ skipping 32 matching lines @@
     if (bVertWriting) {
       charpos.m_OriginY = charpos.m_OriginX;
       charpos.m_OriginX = 0;
       short vx, vy;
       pCIDFont->GetVertOrigin(CID, vx, vy);
       charpos.m_OriginX -= FontSize * vx / 1000;
       charpos.m_OriginY -= FontSize * vy / 1000;
     }
     const uint8_t* pTransform = pCIDFont->GetCIDTransform(CID);
     if (pTransform && !bVert) {
-      charpos.m_AdjustMatrix[0] = _CIDTransformToFloat(pTransform[0]);
-      charpos.m_AdjustMatrix[2] = _CIDTransformToFloat(pTransform[2]);
-      charpos.m_AdjustMatrix[1] = _CIDTransformToFloat(pTransform[1]);
-      charpos.m_AdjustMatrix[3] = _CIDTransformToFloat(pTransform[3]);
-      charpos.m_OriginX += _CIDTransformToFloat(pTransform[4]) * FontSize;
-      charpos.m_OriginY += _CIDTransformToFloat(pTransform[5]) * FontSize;
+      charpos.m_AdjustMatrix[0] = pCIDFont->CIDTransformToFloat(pTransform[0]);
+      charpos.m_AdjustMatrix[2] = pCIDFont->CIDTransformToFloat(pTransform[2]);
+      charpos.m_AdjustMatrix[1] = pCIDFont->CIDTransformToFloat(pTransform[1]);
+      charpos.m_AdjustMatrix[3] = pCIDFont->CIDTransformToFloat(pTransform[3]);
+      charpos.m_OriginX +=
+          pCIDFont->CIDTransformToFloat(pTransform[4]) * FontSize;
+      charpos.m_OriginY +=
+          pCIDFont->CIDTransformToFloat(pTransform[5]) * FontSize;
       charpos.m_bGlyphAdjust = TRUE;
     }
   }
 }
 FX_BOOL CPDF_TextRenderer::DrawTextPath(CFX_RenderDevice* pDevice,
                                         int nChars,
                                         FX_DWORD* pCharCodes,
                                         FX_FLOAT* pCharPos,
                                         CPDF_Font* pFont,
                                         FX_FLOAT font_size,
@@ skipping 191 matching lines @@
     ProcessPath(&path, pObj2Device);
   }
 }
 
 CFX_PathData* CPDF_Font::LoadGlyphPath(FX_DWORD charcode, int dest_width) {
   int glyph_index = GlyphFromCharCode(charcode);
   if (!m_Font.GetFace())
     return nullptr;
   return m_Font.LoadGlyphPath(glyph_index, dest_width);
 }