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

webrtc/base/win32socketserver_unittest.cc

 /*
  *  Copyright 2009 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 "webrtc/base/gunit.h"
 #include "webrtc/base/socket_unittest.h"
 #include "webrtc/base/thread.h"
 #include "webrtc/base/win32socketserver.h"
 
 namespace rtc {
 
 // Test that Win32SocketServer::Wait works as expected.
 TEST(Win32SocketServerTest, TestWait) {
-  Win32SocketServer server(NULL);
+  Win32SocketServer server(nullptr);
   uint32_t start = Time();
   server.Wait(1000, true);
   EXPECT_GE(TimeSince(start), 1000);
 }
 
 // Test that Win32Socket::Pump does not touch general Windows messages.
 TEST(Win32SocketServerTest, TestPump) {
-  Win32SocketServer server(NULL);
+  Win32SocketServer server(nullptr);
   SocketServerScope scope(&server);
-  EXPECT_EQ(TRUE, PostMessage(NULL, WM_USER, 999, 0));
+  EXPECT_EQ(TRUE, PostMessage(nullptr, WM_USER, 999, 0));
   server.Pump();
   MSG msg;
-  EXPECT_EQ(TRUE, PeekMessage(&msg, NULL, WM_USER, 0, PM_REMOVE));
+  EXPECT_EQ(TRUE, PeekMessage(&msg, nullptr, WM_USER, 0, PM_REMOVE));
   EXPECT_EQ(static_cast<UINT>(WM_USER), msg.message);
   EXPECT_EQ(999u, msg.wParam);
 }
 
 // Test that Win32Socket passes all the generic Socket tests.
 class Win32SocketTest : public SocketTest {
  protected:
-  Win32SocketTest() : server_(NULL), scope_(&server_) {}
+  Win32SocketTest() : server_(nullptr), scope_(&server_) {}
   Win32SocketServer server_;
   SocketServerScope scope_;
 };
 
 TEST_F(Win32SocketTest, TestConnectIPv4) {
   SocketTest::TestConnectIPv4();
 }
 
 TEST_F(Win32SocketTest, TestConnectIPv6) {
   SocketTest::TestConnectIPv6();
@@ skipping 101 matching lines @@
   SocketTest::TestGetSetOptionsIPv4();
 }
 
 // Breaks win_x64_dbg bot.
 // https://bugs.chromium.org/p/webrtc/issues/detail?id=6178
 TEST_F(Win32SocketTest, DISABLED_TestGetSetOptionsIPv6) {
   SocketTest::TestGetSetOptionsIPv6();
 }
 
 }  // namespace rtc