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

core/fpdfdoc/cpdf_annot.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/fpdfdoc/cpdf_annot.h"
 
 #include "core/fpdfapi/fpdf_page/cpdf_form.h"
 #include "core/fpdfapi/fpdf_page/cpdf_page.h"
 #include "core/fpdfapi/fpdf_parser/cpdf_array.h"
 #include "core/fpdfapi/fpdf_parser/cpdf_document.h"
 #include "core/fpdfapi/fpdf_render/cpdf_rendercontext.h"
 #include "core/fpdfapi/fpdf_render/cpdf_renderoptions.h"
 #include "core/fpdfdoc/cpvt_generateap.h"
 #include "core/fxcrt/fx_memory.h"
 #include "core/fxge/cfx_graphstatedata.h"
 #include "core/fxge/cfx_pathdata.h"
 #include "core/fxge/cfx_renderdevice.h"
+#include "third_party/base/ptr_util.h"
 
 namespace {
 
 char kPDFiumKey_HasGeneratedAP[] = "PDFIUM_HasGeneratedAP";
 
 bool IsTextMarkupAnnotation(CPDF_Annot::Subtype type) {
   return type == CPDF_Annot::Subtype::HIGHLIGHT ||
          type == CPDF_Annot::Subtype::SQUIGGLY ||
          type == CPDF_Annot::Subtype::STRIKEOUT ||
          type == CPDF_Annot::Subtype::UNDERLINE;
@@ skipping 146 matching lines @@
   if (!pStream)
     return nullptr;
 
   auto it = m_APMap.find(pStream);
   if (it != m_APMap.end())
     return it->second.get();
 
   CPDF_Form* pNewForm =
       new CPDF_Form(m_pDocument, pPage->m_pResources, pStream);
   pNewForm->ParseContent(nullptr, nullptr, nullptr);
-  m_APMap[pStream] = WrapUnique(pNewForm);
+  m_APMap[pStream] = pdfium::WrapUnique(pNewForm);
   return pNewForm;
 }
 
 static CPDF_Form* FPDFDOC_Annot_GetMatrix(const CPDF_Page* pPage,
                                           CPDF_Annot* pAnnot,
                                           CPDF_Annot::AppearanceMode mode,
                                           const CFX_Matrix* pUser2Device,
                                           CFX_Matrix& matrix) {
   CPDF_Form* pForm = pAnnot->GetAPForm(pPage, mode);
   if (!pForm) {
@@ skipping 292 matching lines @@
   CFX_PathData path;
   width /= 2;
   path.AppendRect(rect.left + width, rect.bottom + width, rect.right - width,
                   rect.top - width);
   int fill_type = 0;
   if (pOptions && (pOptions->m_Flags & RENDER_NOPATHSMOOTH)) {
     fill_type |= FXFILL_NOPATHSMOOTH;
   }
   pDevice->DrawPath(&path, pUser2Device, &graph_state, argb, argb, fill_type);
 }