Clean up CPDF_Page.

core/fpdfapi/fpdf_page/cpdf_pattern.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/cpdf_pattern.h"
 
 CPDF_Pattern::CPDF_Pattern(PatternType type,
                            CPDF_Document* pDoc,
                            CPDF_Object* pObj,
                            const CFX_Matrix* pParentMatrix)
-    : m_PatternType(type),
-      m_pDocument(pDoc),
-      m_pPatternObj(pObj),
-      m_bForceClear(FALSE) {
+    : m_PatternType(type), m_pDocument(pDoc), m_pPatternObj(pObj) {
   if (pParentMatrix)
     m_ParentMatrix = *pParentMatrix;
 }
 
 CPDF_Pattern::~CPDF_Pattern() {}