Add -> operators to CFX_CountRef.

core/fxge/ge/cfx_cliprgn.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/fxge/ge/cfx_cliprgn.h"
 
 CFX_ClipRgn::CFX_ClipRgn(int width, int height)
     : m_Type(RectI), m_Box(0, 0, width, height) {}
 
 CFX_ClipRgn::CFX_ClipRgn(const CFX_ClipRgn& src) {
   m_Type = src.m_Type;
   m_Box = src.m_Box;
   m_Mask = src.m_Mask;
 }
 
 CFX_ClipRgn::~CFX_ClipRgn() {}
 
 void CFX_ClipRgn::Reset(const FX_RECT& rect) {
   m_Type = RectI;
   m_Box = rect;
-  m_Mask.SetNull();
+  m_Mask.Clear();
 }
 
 void CFX_ClipRgn::IntersectRect(const FX_RECT& rect) {
   if (m_Type == RectI) {
     m_Box.Intersect(rect);
     return;
   }
   if (m_Type == MaskF) {
     IntersectMaskRect(rect, m_Box, m_Mask);
     return;
@@ skipping 36 matching lines @@
                    top + mask_dib->GetHeight());
   if (m_Type == RectI) {
     IntersectMaskRect(m_Box, mask_box, Mask);
     return;
   }
   if (m_Type == MaskF) {
     FX_RECT new_box = m_Box;
     new_box.Intersect(mask_box);
     if (new_box.IsEmpty()) {
       m_Type = RectI;
-      m_Mask.SetNull();
+      m_Mask.Clear();
       m_Box = new_box;
       return;
     }
     CFX_DIBitmapRef new_mask;
     CFX_DIBitmap* new_dib = new_mask.New();
     if (!new_dib)
       return;
     new_dib->Create(new_box.Width(), new_box.Height(), FXDIB_8bppMask);
     const CFX_DIBitmap* old_dib = m_Mask.GetObject();
     for (int row = new_box.top; row < new_box.bottom; row++) {
       uint8_t* old_scan =
           old_dib->GetBuffer() + (row - m_Box.top) * old_dib->GetPitch();
       uint8_t* mask_scan =
           mask_dib->GetBuffer() + (row - top) * mask_dib->GetPitch();
       uint8_t* new_scan =
           new_dib->GetBuffer() + (row - new_box.top) * new_dib->GetPitch();
       for (int col = new_box.left; col < new_box.right; col++) {
         new_scan[col - new_box.left] =
             old_scan[col - m_Box.left] * mask_scan[col - left] / 255;
       }
     }
     m_Box = new_box;
     m_Mask = new_mask;
     return;
   }
   ASSERT(FALSE);
 }