Remove implicit cast from CFX_WideString to (const wchar_t*)

xfa/fxfa/parser/cxfa_font.cpp

 // Copyright 2016 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 "xfa/fxfa/parser/cxfa_font.h"
 
 #include "core/fxge/include/fx_dib.h"
 #include "xfa/fxfa/parser/cxfa_fill.h"
 #include "xfa/fxfa/parser/xfa_object.h"
 
 CXFA_Font::CXFA_Font(CXFA_Node* pNode) : CXFA_Data(pNode) {}
 
 FX_FLOAT CXFA_Font::GetBaselineShift() {
   return m_pNode->GetMeasure(XFA_ATTRIBUTE_BaselineShift).ToUnit(XFA_UNIT_Pt);
 }
 
 FX_FLOAT CXFA_Font::GetHorizontalScale() {
   CFX_WideString wsValue;
   m_pNode->TryCData(XFA_ATTRIBUTE_FontHorizontalScale, wsValue);
-  int32_t iScale = FXSYS_wtoi((const FX_WCHAR*)wsValue);
+  int32_t iScale = FXSYS_wtoi(wsValue.c_str());
   return iScale > 0 ? (FX_FLOAT)iScale : 100.0f;
 }
 
 FX_FLOAT CXFA_Font::GetVerticalScale() {
   CFX_WideString wsValue;
   m_pNode->TryCData(XFA_ATTRIBUTE_FontVerticalScale, wsValue);
-  int32_t iScale = FXSYS_wtoi((const FX_WCHAR*)wsValue);
+  int32_t iScale = FXSYS_wtoi(wsValue.c_str());
   return iScale > 0 ? (FX_FLOAT)iScale : 100.0f;
 }
 
 FX_FLOAT CXFA_Font::GetLetterSpacing() {
   CFX_WideStringC wsValue;
   if (!m_pNode->TryCData(XFA_ATTRIBUTE_LetterSpacing, wsValue))
     return 0;
 
   CXFA_Measurement ms(wsValue);
   if (ms.GetUnit() == XFA_UNIT_Em)
@@ skipping 43 matching lines @@
 
 void CXFA_Font::SetColor(FX_ARGB color) {
   CXFA_Fill fill(m_pNode->GetProperty(0, XFA_ELEMENT_Fill));
   fill.SetColor(color);
 }
 
 FX_ARGB CXFA_Font::GetColor() {
   CXFA_Fill fill(m_pNode->GetChild(0, XFA_ELEMENT_Fill));
   return fill ? fill.GetColor(TRUE) : 0xFF000000;
 }