Add ptr_util.h from base until std::make_unique<> available

fpdfsdk/fxedit/fxet_edit.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 "fpdfsdk/fxedit/fxet_edit.h"
 
 #include <algorithm>
 #include <memory>
@@ skipping 10 matching lines @@
 #include "core/fpdfdoc/cpvt_section.h"
 #include "core/fpdfdoc/cpvt_word.h"
 #include "core/fpdfdoc/ipvt_fontmap.h"
 #include "core/fxge/cfx_graphstatedata.h"
 #include "core/fxge/cfx_pathdata.h"
 #include "core/fxge/cfx_renderdevice.h"
 #include "fpdfsdk/cfx_systemhandler.h"
 #include "fpdfsdk/fxedit/fx_edit.h"
 #include "fpdfsdk/pdfwindow/PWL_Edit.h"
 #include "fpdfsdk/pdfwindow/PWL_EditCtrl.h"
+#include "third_party/base/ptr_util.h"
 
 namespace {
 
 const int kEditUndoMaxItems = 10000;
 
 CFX_ByteString GetWordRenderString(const CFX_ByteString& strWords) {
   if (strWords.GetLength() > 0)
     return PDF_EncodeString(strWords) + " Tj\n";
   return CFX_ByteString();
 }
@@ skipping 978 matching lines @@
   ASSERT(!m_pGroupUndoItem);
 }
 
 void CFX_Edit::Initialize() {
   m_pVT->Initialize();
   SetCaret(m_pVT->GetBeginWordPlace());
   SetCaretOrigin();
 }
 
 void CFX_Edit::SetFontMap(IPVT_FontMap* pFontMap) {
-  m_pVTProvider = WrapUnique(new CFX_Edit_Provider(pFontMap));
+  m_pVTProvider = pdfium::MakeUnique<CFX_Edit_Provider>(pFontMap);
   m_pVT->SetProvider(m_pVTProvider.get());
 }
 
 void CFX_Edit::SetNotify(CPWL_EditCtrl* pNotify) {
   m_pNotify = pNotify;
 }
 
 void CFX_Edit::SetOprNotify(CPWL_Edit* pOprNotify) {
   m_pOprNotify = pOprNotify;
 }
 
 CFX_Edit_Iterator* CFX_Edit::GetIterator() {
-  if (!m_pIterator)
-    m_pIterator = WrapUnique(new CFX_Edit_Iterator(this, m_pVT->GetIterator()));
+  if (!m_pIterator) {
+    m_pIterator =
+        pdfium::MakeUnique<CFX_Edit_Iterator>(this, m_pVT->GetIterator());
+  }
   return m_pIterator.get();
 }
 
 IPVT_FontMap* CFX_Edit::GetFontMap() {
   return m_pVTProvider ? m_pVTProvider->GetFontMap() : nullptr;
 }
 
 void CFX_Edit::SetPlateRect(const CFX_FloatRect& rect) {
   m_pVT->SetPlateRect(rect);
   m_ptScrollPos = CFX_FloatPoint(rect.left, rect.top);
@@ skipping 1469 matching lines @@
 int32_t CFX_Edit_RectArray::GetSize() const {
   return m_Rects.GetSize();
 }
 
 CFX_FloatRect* CFX_Edit_RectArray::GetAt(int32_t nIndex) const {
   if (nIndex < 0 || nIndex >= m_Rects.GetSize())
     return nullptr;
 
   return m_Rects.GetAt(nIndex);
 }