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

webrtc/base/base64_unittest.cc

 /*
  *  Copyright 2011 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 321 matching lines @@
                     size_t szdest) {
   std::string escaped;
   Base64::EncodeFromArray((const char *)src, szsrc, &escaped);
   memcpy(dest, escaped.data(), min(escaped.size(), szdest));
   return escaped.size();
 }
 
 size_t Base64Unescape(const char *src, size_t szsrc, char *dest,
                       size_t szdest) {
   std::string unescaped;
-  EXPECT_TRUE(Base64::DecodeFromArray(src, szsrc, Base64::DO_LAX, &unescaped,
-                                      NULL));
+  EXPECT_TRUE(
+      Base64::DecodeFromArray(src, szsrc, Base64::DO_LAX, &unescaped, nullptr));
   memcpy(dest, unescaped.data(), min(unescaped.size(), szdest));
   return unescaped.size();
 }
 
 size_t Base64Unescape(const char *src, size_t szsrc, std::string *s) {
-  EXPECT_TRUE(Base64::DecodeFromArray(src, szsrc, Base64::DO_LAX, s, NULL));
+  EXPECT_TRUE(Base64::DecodeFromArray(src, szsrc, Base64::DO_LAX, s, nullptr));
   return s->size();
 }
 
 TEST(Base64, EncodeDecodeBattery) {
   LOG(LS_VERBOSE) << "Testing base-64";
 
   size_t i;
 
   // Check the short strings; this tests the math (and boundaries)
   for( i = 0; i < sizeof(base64_tests) / sizeof(base64_tests[0]); ++i ) {
@@ skipping 628 matching lines @@
   // The table looks like this:
   // "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
   char next_char;
   EXPECT_TRUE(Base64::GetNextBase64Char('A', &next_char));
   EXPECT_EQ('B', next_char);
   EXPECT_TRUE(Base64::GetNextBase64Char('Z', &next_char));
   EXPECT_EQ('a', next_char);
   EXPECT_TRUE(Base64::GetNextBase64Char('/', &next_char));
   EXPECT_EQ('A', next_char);
   EXPECT_FALSE(Base64::GetNextBase64Char('&', &next_char));
-  EXPECT_FALSE(Base64::GetNextBase64Char('Z', NULL));
+  EXPECT_FALSE(Base64::GetNextBase64Char('Z', nullptr));
 }