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

fpdfsdk/fpdfeditimg.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 "public/fpdf_edit.h"
 
 #include "core/fpdfapi/cpdf_modulemgr.h"
 #include "core/fpdfapi/fpdf_page/cpdf_image.h"
 #include "core/fpdfapi/fpdf_page/cpdf_imageobject.h"
 #include "core/fpdfapi/fpdf_page/cpdf_pageobject.h"
 #include "fpdfsdk/fsdk_define.h"
+#include "third_party/base/ptr_util.h"
 
 DLLEXPORT FPDF_PAGEOBJECT STDCALL
 FPDFPageObj_NewImgeObj(FPDF_DOCUMENT document) {
   CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
   if (!pDoc)
     return nullptr;
 
   CPDF_ImageObject* pImageObj = new CPDF_ImageObject;
-  pImageObj->SetOwnedImage(WrapUnique(new CPDF_Image(pDoc)));
+  pImageObj->SetOwnedImage(pdfium::MakeUnique<CPDF_Image>(pDoc));
   return pImageObj;
 }
 
 DLLEXPORT FPDF_BOOL STDCALL
 FPDFImageObj_LoadJpegFile(FPDF_PAGE* pages,
                           int nCount,
                           FPDF_PAGEOBJECT image_object,
                           FPDF_FILEACCESS* fileAccess) {
   if (!image_object || !fileAccess || !pages)
     return FALSE;
@@ skipping 41 matching lines @@
   CPDF_ImageObject* pImgObj = reinterpret_cast<CPDF_ImageObject*>(image_object);
   for (int index = 0; index < nCount; index++) {
     CPDF_Page* pPage = CPDFPageFromFPDFPage(pages[index]);
     if (pPage)
       pImgObj->GetImage()->ResetCache(pPage, nullptr);
   }
   pImgObj->GetImage()->SetImage(reinterpret_cast<CFX_DIBitmap*>(bitmap), FALSE);
   pImgObj->CalcBoundingBox();
   return TRUE;
 }