Switch from nonstd::unique_ptr to std::unique_ptr.

core/src/fpdftext/fpdf_text.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 <cctype>
+#include <cwctype>
+#include <memory>
+
 #include "core/include/fpdfapi/fpdf_page.h"
 #include "core/include/fpdfapi/fpdf_pageobj.h"
 #include "core/include/fpdfapi/fpdf_resource.h"
 #include "core/include/fpdftext/fpdf_text.h"
 #include "core/include/fxcrt/fx_bidi.h"
 #include "core/include/fxcrt/fx_ucd.h"
 #include "text_int.h"
-#include "third_party/base/nonstd_unique_ptr.h"
 #include "txtproc.h"
 
-#include <cctype>
-#include <cwctype>
-
 CFX_ByteString CharFromUnicodeAlt(FX_WCHAR unicode,
                                   int destcp,
                                   const FX_CHAR* defchar) {
   if (destcp == 0) {
     if (unicode < 0x80) {
       return CFX_ByteString((char)unicode);
     }
     const FX_CHAR* altstr = FCS_GetAltStr(unicode);
     return CFX_ByteString(altstr ? altstr : defchar);
   }
@@ skipping 277 matching lines @@
   for (int nIndex = 0; nIndex < nCount; nIndex++) {
     sDest += pDst[nIndex];
   }
   delete[] pDst;
 }
 void NormalizeString(CFX_WideString& str) {
   if (str.GetLength() <= 0) {
     return;
   }
   CFX_WideString sBuffer;
-  nonstd::unique_ptr<CFX_BidiChar> pBidiChar(new CFX_BidiChar);
+  std::unique_ptr<CFX_BidiChar> pBidiChar(new CFX_BidiChar);
   CFX_WordArray order;
   FX_BOOL bR2L = FALSE;
   int32_t start = 0, count = 0, i = 0;
   int nR2L = 0, nL2R = 0;
   for (i = 0; i < str.GetLength(); i++) {
     if (pBidiChar->AppendChar(str.GetAt(i))) {
       CFX_BidiChar::Direction ret = pBidiChar->GetBidiInfo(&start, &count);
       order.Add(start);
       order.Add(count);
       order.Add(ret);
@@ skipping 452 matching lines @@
                                FX_DWORD flags) {
   buffer.EstimateSize(0, 10240);
   CPDF_Page page;
   page.Load(pDoc, pPage);
   CPDF_ParseOptions options;
   options.m_bTextOnly = TRUE;
   options.m_bSeparateForm = FALSE;
   page.ParseContent(&options);
   GetTextStream_Unicode(buffer, &page, TRUE, NULL);
 }