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

fpdfsdk/src/fsdk_mgr.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 <algorithm>
+#include <memory>
 
 #include "fpdfsdk/include/fsdk_mgr.h"
 
 #include "fpdfsdk/include/formfiller/FFL_FormFiller.h"
 #include "fpdfsdk/include/fsdk_define.h"
 #include "fpdfsdk/include/javascript/IJavaScript.h"
 #include "public/fpdf_ext.h"
-#include "third_party/base/nonstd_unique_ptr.h"
 #include "third_party/base/stl_util.h"
 
 #if _FX_OS_ == _FX_ANDROID_
 #include "time.h"
 #else
 #include <ctime>
 #endif
 
 class CFX_SystemHandler : public IFX_SystemHandler {
  public:
@@ skipping 240 matching lines @@
   if (!m_pInfo || !m_pInfo->m_pJsPlatform ||
       !m_pInfo->m_pJsPlatform->Field_browse) {
     return L"";
   }
 
   const int nRequiredLen =
       m_pInfo->m_pJsPlatform->Field_browse(m_pInfo->m_pJsPlatform, nullptr, 0);
   if (nRequiredLen <= 0)
     return L"";
 
-  nonstd::unique_ptr<char[]> pBuff(new char[nRequiredLen]);
+  std::unique_ptr<char[]> pBuff(new char[nRequiredLen]);
   memset(pBuff.get(), 0, nRequiredLen);
   const int nActualLen = m_pInfo->m_pJsPlatform->Field_browse(
       m_pInfo->m_pJsPlatform, pBuff.get(), nRequiredLen);
   if (nActualLen <= 0 || nActualLen > nRequiredLen)
     return L"";
 
   CFX_ByteString bsRet = CFX_ByteString(pBuff.get(), nActualLen);
   CFX_WideString wsRet = CFX_WideString::FromLocal(bsRet);
   return wsRet;
 }
 
 CFX_WideString CPDFDoc_Environment::JS_docGetFilePath() {
   if (!m_pInfo || !m_pInfo->m_pJsPlatform ||
       !m_pInfo->m_pJsPlatform->Doc_getFilePath) {
     return L"";
   }
 
   const int nRequiredLen = m_pInfo->m_pJsPlatform->Doc_getFilePath(
       m_pInfo->m_pJsPlatform, nullptr, 0);
   if (nRequiredLen <= 0)
     return L"";
 
-  nonstd::unique_ptr<char[]> pBuff(new char[nRequiredLen]);
+  std::unique_ptr<char[]> pBuff(new char[nRequiredLen]);
   memset(pBuff.get(), 0, nRequiredLen);
   const int nActualLen = m_pInfo->m_pJsPlatform->Doc_getFilePath(
       m_pInfo->m_pJsPlatform, pBuff.get(), nRequiredLen);
   if (nActualLen <= 0 || nActualLen > nRequiredLen)
     return L"";
 
   CFX_ByteString bsRet = CFX_ByteString(pBuff.get(), nActualLen);
   CFX_WideString wsRet = CFX_WideString::FromLocal(bsRet);
   return wsRet;
 }
@@ skipping 607 matching lines @@
   CPDFSDK_Annot* pFocusAnnot = m_pSDKDoc->GetFocusAnnot();
   if (!pFocusAnnot)
     return nullptr;
 
   for (CPDFSDK_Annot* pAnnot : m_fxAnnotArray) {
     if (pAnnot == pFocusAnnot)
       return pAnnot;
   }
   return nullptr;
 }