Replace NULL with nullptr or null in webrtc/base/.

webrtc/base/win32filesystem.cc

 /*
  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 42 matching lines @@
 
   // Directory doesn't exist, look up one directory level
   if (!pathname.parent_folder().empty()) {
     Pathname parent(pathname);
     parent.SetFolder(pathname.parent_folder());
     if (!CreateFolder(parent)) {
       return false;
     }
   }
 
-  return (::CreateDirectory(path16.c_str(), NULL) != 0);
+  return (::CreateDirectory(path16.c_str(), nullptr) != 0);
 }
 
 FileStream *Win32Filesystem::OpenFile(const Pathname &filename,
                                       const std::string &mode) {
   FileStream *fs = new FileStream();
-  if (fs && !fs->Open(filename.pathname().c_str(), mode.c_str(), NULL)) {
+  if (fs && !fs->Open(filename.pathname().c_str(), mode.c_str(), nullptr)) {
     delete fs;
-    fs = NULL;
+    fs = nullptr;
   }
   return fs;
 }
 
 bool Win32Filesystem::DeleteFile(const Pathname &filename) {
   LOG(LS_INFO) << "Deleting file " << filename.pathname();
   if (!IsFile(filename)) {
     RTC_DCHECK(IsFile(filename));
     return false;
   }
@@ skipping 16 matching lines @@
       !::GetLongPathName(buffer, buffer, arraysize(buffer)))
     return false;
   size_t len = strlen(buffer);
   if ((len > 0) && (buffer[len-1] != '\\')) {
     len += strcpyn(buffer + len, arraysize(buffer) - len, L"\\");
   }
   if (len >= arraysize(buffer) - 1)
     return false;
   pathname.clear();
   pathname.SetFolder(ToUtf8(buffer));
-  if (append != NULL) {
+  if (append != nullptr) {
     RTC_DCHECK(!append->empty());
     pathname.AppendFolder(*append);
   }
   return !create || CreateFolder(pathname);
 }
 
 std::string Win32Filesystem::TempFilename(const Pathname &dir,
                                           const std::string &prefix) {
   wchar_t filename[MAX_PATH];
   if (::GetTempFileName(ToUtf16(dir.pathname()).c_str(),
@@ skipping 84 matching lines @@
     FileTimeToUnixTime(data.ftLastAccessTime, time);
     break;
   default:
     return false;
   }
   return true;
 }
 
 bool Win32Filesystem::GetAppPathname(Pathname* path) {
   TCHAR buffer[MAX_PATH + 1];
-  if (0 == ::GetModuleFileName(NULL, buffer, arraysize(buffer)))
+  if (0 == ::GetModuleFileName(nullptr, buffer, arraysize(buffer)))
     return false;
   path->SetPathname(ToUtf8(buffer));
   return true;
 }
 
 bool Win32Filesystem::GetAppTempFolder(Pathname* path) {
   if (!GetAppPathname(path))
     return false;
   std::string filename(path->filename());
   return GetTemporaryFolder(*path, true, &filename);
 }
 
 }  // namespace rtc