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

webrtc/base/fileutils_unittest.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.
  */
 
 #include <memory>
 
 #include "webrtc/base/fileutils.h"
 #include "webrtc/base/gunit.h"
 #include "webrtc/base/pathutils.h"
 #include "webrtc/base/stream.h"
 
 namespace rtc {
 
 #if defined (WEBRTC_ANDROID)
 // Fails on Android: https://bugs.chromium.org/p/webrtc/issues/detail?id=4364.
 #define MAYBE_FilesystemTest DISABLED_FilesystemTest
 #else
 #define MAYBE_FilesystemTest FilesystemTest
 #endif
 
 // Make sure we can get a temp folder for the later tests.
 TEST(MAYBE_FilesystemTest, GetTemporaryFolder) {
   Pathname path;
-  EXPECT_TRUE(Filesystem::GetTemporaryFolder(path, true, NULL));
+  EXPECT_TRUE(Filesystem::GetTemporaryFolder(path, true, nullptr));
 }
 
 // Test creating a temp file, reading it back in, and deleting it.
 TEST(MAYBE_FilesystemTest, TestOpenFile) {
   Pathname path;
-  EXPECT_TRUE(Filesystem::GetTemporaryFolder(path, true, NULL));
+  EXPECT_TRUE(Filesystem::GetTemporaryFolder(path, true, nullptr));
   path.SetPathname(Filesystem::TempFilename(path, "ut"));
 
   FileStream* fs;
   char buf[256];
   size_t bytes;
 
   fs = Filesystem::OpenFile(path, "wb");
-  ASSERT_TRUE(fs != NULL);
-  EXPECT_EQ(SR_SUCCESS, fs->Write("test", 4, &bytes, NULL));
+  ASSERT_TRUE(fs != nullptr);
+  EXPECT_EQ(SR_SUCCESS, fs->Write("test", 4, &bytes, nullptr));
   EXPECT_EQ(4U, bytes);
   delete fs;
 
   EXPECT_TRUE(Filesystem::IsFile(path));
 
   fs = Filesystem::OpenFile(path, "rb");
-  ASSERT_TRUE(fs != NULL);
-  EXPECT_EQ(SR_SUCCESS, fs->Read(buf, sizeof(buf), &bytes, NULL));
+  ASSERT_TRUE(fs != nullptr);
+  EXPECT_EQ(SR_SUCCESS, fs->Read(buf, sizeof(buf), &bytes, nullptr));
   EXPECT_EQ(4U, bytes);
   delete fs;
 
   EXPECT_TRUE(Filesystem::DeleteFile(path));
   EXPECT_FALSE(Filesystem::IsFile(path));
 }
 
 // Test opening a non-existent file.
 TEST(MAYBE_FilesystemTest, TestOpenBadFile) {
   Pathname path;
-  EXPECT_TRUE(Filesystem::GetTemporaryFolder(path, true, NULL));
+  EXPECT_TRUE(Filesystem::GetTemporaryFolder(path, true, nullptr));
   path.SetFilename("not an actual file");
 
   EXPECT_FALSE(Filesystem::IsFile(path));
 
   FileStream* fs = Filesystem::OpenFile(path, "rb");
-  EXPECT_FALSE(fs != NULL);
+  EXPECT_FALSE(fs != nullptr);
 }
 
 }  // namespace rtc