Mojo: NULL -> nullptr in mojo/public/cpp outside of bindings.

mojo/public/cpp/test_support/lib/test_utils.cc

 // Copyright 2013 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 "mojo/public/cpp/test_support/test_utils.h"
 
 #include "mojo/public/cpp/system/core.h"
 #include "mojo/public/cpp/test_support/test_support.h"
 
 namespace mojo {
 namespace test {
 
 bool WriteTextMessage(const MessagePipeHandle& handle,
                       const std::string& text) {
   MojoResult rv = WriteMessageRaw(handle,
                                   text.data(),
                                   static_cast<uint32_t>(text.size()),
-                                  NULL,
+                                  nullptr,
                                   0,
                                   MOJO_WRITE_MESSAGE_FLAG_NONE);
   return rv == MOJO_RESULT_OK;
 }
 
 bool ReadTextMessage(const MessagePipeHandle& handle, std::string* text) {
   MojoResult rv;
   bool did_wait = false;
 
   uint32_t num_bytes = 0, num_handles = 0;
   for (;;) {
     rv = ReadMessageRaw(handle,
-                        NULL,
+                        nullptr,
                         &num_bytes,
-                        NULL,
+                        nullptr,
                         &num_handles,
                         MOJO_READ_MESSAGE_FLAG_NONE);
     if (rv == MOJO_RESULT_SHOULD_WAIT) {
       if (did_wait) {
         assert(false);  // Looping endlessly!?
         return false;
       }
       rv = Wait(handle, MOJO_HANDLE_SIGNAL_READABLE, MOJO_DEADLINE_INDEFINITE);
       if (rv != MOJO_RESULT_OK)
         return false;
       did_wait = true;
     } else {
       assert(!num_handles);
       break;
     }
   }
 
   text->resize(num_bytes);
   rv = ReadMessageRaw(handle,
                       &text->at(0),
                       &num_bytes,
-                      NULL,
+                      nullptr,
                       &num_handles,
                       MOJO_READ_MESSAGE_FLAG_NONE);
   return rv == MOJO_RESULT_OK;
 }
 
 bool DiscardMessage(const MessagePipeHandle& handle) {
-  MojoResult rv = ReadMessageRaw(handle, NULL, NULL, NULL, NULL,
+  MojoResult rv = ReadMessageRaw(handle, nullptr, nullptr, nullptr, nullptr,
                                  MOJO_READ_MESSAGE_FLAG_MAY_DISCARD);
   return rv == MOJO_RESULT_OK;
 }
 
 void IterateAndReportPerf(const char* test_name,
                           PerfTestSingleIteration single_iteration,
                           void* closure) {
   // TODO(vtl): These should be specifiable using command-line flags.
   static const size_t kGranularity = 100;
   static const MojoTimeTicks kPerftestTimeMicroseconds = 3 * 1000000;
 
   const MojoTimeTicks start_time = GetTimeTicksNow();
   MojoTimeTicks end_time;
   size_t iterations = 0;
   do {
     for (size_t i = 0; i < kGranularity; i++)
       (*single_iteration)(closure);
     iterations += kGranularity;
 
     end_time = GetTimeTicksNow();
   } while (end_time - start_time < kPerftestTimeMicroseconds);
 
   MojoTestSupportLogPerfResult(test_name,
                                1000000.0 * iterations / (end_time - start_time),
                                "iterations/second");
 }
 
 }  // namespace test
 }  // namespace mojo