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

core/src/fxcodec/codec/fx_codec_flate.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 "codec_int.h"
+
+#include <memory>
+
 #include "core/include/fxcodec/fx_codec.h"
 #include "core/include/fxcodec/fx_codec_flate.h"
-#include "third_party/base/nonstd_unique_ptr.h"
 #include "third_party/zlib_v128/zlib.h"
 
 extern "C" {
 static void* my_alloc_func(void* opaque,
                            unsigned int items,
                            unsigned int size) {
   return FX_Alloc2D(uint8_t, items, size);
 }
 static void my_free_func(void* opaque, void* address) {
   FX_Free(address);
@@ skipping 611 matching lines @@
   }
   FX_DWORD buf_size = guess_size;
   FX_DWORD last_buf_size = buf_size;
 
   dest_buf = nullptr;
   dest_size = 0;
   void* context = FPDFAPI_FlateInit(my_alloc_func, my_free_func);
   if (!context)
     return;
 
-  nonstd::unique_ptr<uint8_t, FxFreeDeleter> guess_buf(
+  std::unique_ptr<uint8_t, FxFreeDeleter> guess_buf(
       FX_Alloc(uint8_t, guess_size + 1));
   guess_buf.get()[guess_size] = '\0';
 
   FPDFAPI_FlateInput(context, src_buf, src_size);
 
   if (src_size < kStepSize) {
     // This is the old implementation.
     uint8_t* cur_buf = guess_buf.get();
     while (1) {
       int32_t ret = FPDFAPI_FlateOutput(context, cur_buf, buf_size);
@@ skipping 273 matching lines @@
   int predictor_type = 0;
   if (predictor) {
     if (predictor >= 10) {
       predictor_type = 2;
     } else if (predictor == 2) {
       predictor_type = 1;
     }
   }
   if (bLZW) {
     {
-      nonstd::unique_ptr<CLZWDecoder> decoder(new CLZWDecoder);
+      std::unique_ptr<CLZWDecoder> decoder(new CLZWDecoder);
       dest_size = (FX_DWORD)-1;
       offset = src_size;
       int err = decoder->Decode(NULL, dest_size, src_buf, offset, bEarlyChange);
       if (err || dest_size == 0 || dest_size + 1 < dest_size) {
         return -1;
       }
     }
     {
-      nonstd::unique_ptr<CLZWDecoder> decoder(new CLZWDecoder);
+      std::unique_ptr<CLZWDecoder> decoder(new CLZWDecoder);
       dest_buf = FX_Alloc(uint8_t, dest_size + 1);
       dest_buf[dest_size] = '\0';
       decoder->Decode(dest_buf, dest_size, src_buf, offset, bEarlyChange);
     }
   } else {
     FlateUncompress(src_buf, src_size, estimated_size, dest_buf, dest_size,
                     offset);
   }
   if (predictor_type == 0) {
     return offset;
@@ skipping 38 matching lines @@
                                    FX_DWORD src_size,
                                    uint8_t*& dest_buf,
                                    FX_DWORD& dest_size) {
   dest_size = src_size + src_size / 1000 + 12;
   dest_buf = FX_Alloc(uint8_t, dest_size);
   unsigned long temp_size = dest_size;
   FPDFAPI_FlateCompress(dest_buf, &temp_size, src_buf, src_size);
   dest_size = (FX_DWORD)temp_size;
   return TRUE;
 }