Revert "Use ->() in CPDF_ColorState"

core/fpdfapi/fpdf_render/fpdf_render_image.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 "core/fpdfapi/fpdf_render/render_int.h"
 
 #include <memory>
 #include <utility>
@@ skipping 404 matching lines @@
       if (m_Loader.m_bCached && m_Loader.m_pMask) {
         m_Loader.m_pMask = m_Loader.m_pMask->Clone();
       }
       m_Loader.m_bCached = FALSE;
     }
   }
   m_FillArgb = 0;
   m_bPatternColor = FALSE;
   m_pPattern = nullptr;
   if (m_pDIBSource->IsAlphaMask()) {
-    const CPDF_Color* pColor = m_pImageObject->m_ColorState->GetFillColor();
+    const CPDF_Color* pColor = m_pImageObject->m_ColorState.GetFillColor();
     if (pColor && pColor->IsPattern()) {
       m_pPattern = pColor->GetPattern();
       if (m_pPattern) {
         m_bPatternColor = TRUE;
       }
     }
     m_FillArgb = m_pRenderStatus->GetFillArgb(m_pImageObject);
   } else if (m_pRenderStatus->m_Options.m_ColorMode == RENDER_COLOR_GRAY) {
     m_pClone.reset(m_pDIBSource->Clone());
     m_pClone->ConvertColorScale(m_pRenderStatus->m_Options.m_BackColor,
@@ skipping 632 matching lines @@
   } else if (pFunc) {
     int size = dest_pitch * height;
     for (int i = 0; i < size; i++) {
       dest_buf[i] = transfers[src_buf[i]];
     }
   } else {
     FXSYS_memcpy(dest_buf, src_buf, dest_pitch * height);
   }
   return pMask.release();
 }