Change scoped_ptr to std::unique_ptr in //net/disk_cache.

net/disk_cache/blockfile/mapped_file_posix.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/disk_cache/blockfile/mapped_file.h"
 
 #include <errno.h>
 #include <sys/mman.h>
 
 #include "base/files/file_path.h"
@@ skipping 13 matching lines @@
 
   buffer_ = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED,
                  platform_file(), 0);
   init_ = true;
   view_size_ = size;
   DPLOG_IF(FATAL, buffer_ == MAP_FAILED) << "Failed to mmap " << name.value();
   if (buffer_ == MAP_FAILED)
     buffer_ = 0;
 
   // Make sure we detect hardware failures reading the headers.
-  scoped_ptr<char[]> temp(new char[temp_len]);
+  std::unique_ptr<char[]> temp(new char[temp_len]);
   if (!Read(temp.get(), temp_len, 0))
     return NULL;
 
   return buffer_;
 }
 
 void MappedFile::Flush() {
 }
 
 MappedFile::~MappedFile() {
   if (!init_)
     return;
 
   if (buffer_) {
     int ret = munmap(buffer_, view_size_);
     DCHECK_EQ(0, ret);
   }
 }
 
 }  // namespace disk_cache