Use smart pointers for class owned pointers under xfa/fde

xfa/fxfa/app/xfa_textlayout.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 "xfa/fxfa/app/xfa_textlayout.h"
 
 #include <algorithm>
 
@@ skipping 78 matching lines @@
   m_pAllocator.reset();
 }
 void CXFA_TextParser::InitCSSData(CXFA_TextProvider* pTextProvider) {
   if (!pTextProvider)
     return;
 
   if (!m_pSelector) {
     CXFA_FFDoc* pDoc = pTextProvider->GetDocNode();
     IFGAS_FontMgr* pFontMgr = pDoc->GetApp()->GetFDEFontMgr();
     ASSERT(pFontMgr);
-    m_pSelector.reset(new CFDE_CSSStyleSelector);
-    m_pSelector->SetFontMgr(pFontMgr);
+    m_pSelector.reset(new CFDE_CSSStyleSelector(pFontMgr));
     FX_FLOAT fFontSize = 10;
     CXFA_Font font = pTextProvider->GetFontNode();
     if (font) {
       fFontSize = font.GetFontSize();
     }
     m_pSelector->SetDefFontSize(fFontSize);
   }
   if (!m_pUASheet) {
     m_pUASheet = LoadDefaultSheetStyle();
     m_pSelector->SetStyleSheet(FDE_CSSSTYLESHEETGROUP_UserAgent, m_pUASheet);
@@ skipping 134 matching lines @@
   m_pSelector->ComputeStyle(&tagProvider, pContext->GetDecls(),
                             pContext->CountDecls(), pStyle);
   pCSSAccel->OnLeaveTag(&tagProvider);
   return pStyle;
 }
 void CXFA_TextParser::DoParse(CFDE_XMLNode* pXMLContainer,
                               CXFA_TextProvider* pTextProvider) {
   if (!pXMLContainer || !pTextProvider || m_pAllocator) {
     return;
   }
-  m_pAllocator.reset(IFX_MemoryAllocator::Create(FX_ALLOCTYPE_Fixed, 32,
-                                                 sizeof(CXFA_CSSTagProvider)));
+  m_pAllocator = IFX_MemoryAllocator::Create(FX_ALLOCTYPE_Fixed, 32,
+                                             sizeof(CXFA_CSSTagProvider));
   InitCSSData(pTextProvider);
   IFDE_CSSComputedStyle* pRootStyle = CreateRootStyle(pTextProvider);
   ParseRichText(pXMLContainer, pRootStyle);
   pRootStyle->Release();
 }
 void CXFA_TextParser::ParseRichText(CFDE_XMLNode* pXMLNode,
                                     IFDE_CSSComputedStyle* pParentStyle) {
   if (!pXMLNode)
     return;
 
@@ skipping 1020 matching lines @@
       XFA_TextPiece* pPiece = pPieceLine->m_textPieces.GetAt(j);
       CFX_RectF& rect = pPiece->rtPiece;
       rect.top += fHeight;
     }
   }
 }
 FX_BOOL CXFA_TextLayout::Loader(const CFX_SizeF& szText,
                                 FX_FLOAT& fLinePos,
                                 FX_BOOL bSavePieces) {
   if (!m_pAllocator) {
-    m_pAllocator.reset(
-        IFX_MemoryAllocator::Create(FX_ALLOCTYPE_Static, 256, 0));
+    m_pAllocator = IFX_MemoryAllocator::Create(FX_ALLOCTYPE_Static, 256, 0);
   }
   GetTextDataNode();
   if (!m_pTextDataNode)
     return TRUE;
 
   if (m_bRichText) {
     CFDE_XMLNode* pXMLContainer = GetXMLContainerNode();
     if (pXMLContainer) {
       if (!m_textParser.IsParsed()) {
         m_textParser.DoParse(pXMLContainer, m_pTextProvider);
@@ skipping 774 matching lines @@
   m_tabstops.RemoveAll();
   m_iTabCount = 0;
 }
 
 void CXFA_TextTabstopsContext::Reset() {
   m_iTabIndex = -1;
   m_bTabstops = FALSE;
   m_fTabWidth = 0;
   m_fLeft = 0;
 }