Convert NULL to nullptr

snapshot/cpu_context_mac_test.cc

 // Copyright 2014 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 20 matching lines @@
   x86_thread_state32.__eax = 1;
   x86_float_state32.__fpu_ftw = 2;
   x86_debug_state32.__dr0 = 3;
 
   // Test the simple case, where everything in the CPUContextX86 argument is set
   // directly from the supplied thread, float, and debug state parameters.
   {
     CPUContextX86 cpu_context_x86 = {};
     internal::InitializeCPUContextX86(&cpu_context_x86,
                                       THREAD_STATE_NONE,
-                                      NULL,
+                                      nullptr,
                                       0,
                                       &x86_thread_state32,
                                       &x86_float_state32,
                                       &x86_debug_state32);
     EXPECT_EQ(1u, cpu_context_x86.eax);
     EXPECT_EQ(2u, cpu_context_x86.fxsave.ftw);
     EXPECT_EQ(3u, cpu_context_x86.dr0);
   }
 
   // Supply context in a CPU-specific “flavor” parameter expected to be used
@@ skipping 174 matching lines @@
   x86_thread_state64.__rax = 10;
   x86_float_state64.__fpu_ftw = 11;
   x86_debug_state64.__dr0 = 12;
 
   // Test the simple case, where everything in the CPUContextX86_64 argument is
   // set directly from the supplied thread, float, and debug state parameters.
   {
     CPUContextX86_64 cpu_context_x86_64 = {};
     internal::InitializeCPUContextX86_64(&cpu_context_x86_64,
                                          THREAD_STATE_NONE,
-                                         NULL,
+                                         nullptr,
                                          0,
                                          &x86_thread_state64,
                                          &x86_float_state64,
                                          &x86_debug_state64);
     EXPECT_EQ(10u, cpu_context_x86_64.rax);
     EXPECT_EQ(11u, cpu_context_x86_64.fxsave.ftw);
     EXPECT_EQ(12u, cpu_context_x86_64.dr0);
   }
 
   // Supply context in a CPU-specific “flavor” parameter expected to be used
@@ skipping 165 matching lines @@
     EXPECT_EQ(11u, cpu_context_x86_64.fxsave.ftw);
     EXPECT_EQ(12u, cpu_context_x86_64.dr0);
   }
 }
 
 #endif
 
 }  // namespace
 }  // namespace test
 }  // namespace crashpad