Add -> operators to CFX_CountRef.

core/fpdfapi/fpdf_page/cpdf_generalstate.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 "core/fpdfapi/fpdf_page/include/cpdf_generalstate.h"
 
 namespace {
 
 int RI_StringToId(const CFX_ByteString& ri) {
   uint32_t id = ri.GetID();
   if (id == FXBSTR_ID('A', 'b', 's', 'o'))
     return 1;
 
   if (id == FXBSTR_ID('S', 'a', 't', 'u'))
     return 2;
 
   if (id == FXBSTR_ID('P', 'e', 'r', 'c'))
     return 3;
 
   return 0;
 }
 
 }  // namespace
 
 void CPDF_GeneralState::SetRenderIntent(const CFX_ByteString& ri) {
-  GetPrivateCopy()->m_RenderIntent = RI_StringToId(ri);
+  MakePrivateCopy();
+  GetObject()->m_RenderIntent = RI_StringToId(ri);
 }