NULL -> nullptr under athena/

athena/resource_manager/memory_pressure_notifier_unittest.cc

 /// Copyright 2014 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 "athena/resource_manager/memory_pressure_notifier.h"
 #include "athena/resource_manager/public/resource_manager_delegate.h"
 #include "athena/test/base/athena_test_base.h"
 
 namespace athena {
 namespace test {
@@ skipping 65 matching lines @@
   ResourceManager::MemoryPressure pressure_;
 
   DISALLOW_COPY_AND_ASSIGN(TestMemoryPressureObserver);
 };
 
 }  // namespace
 
 // Our testing base.
 class MemoryPressureTest : public AthenaTestBase {
  public:
-  MemoryPressureTest() : test_resource_manager_delegate_(NULL) {}
+  MemoryPressureTest() : test_resource_manager_delegate_(nullptr) {}
   virtual ~MemoryPressureTest() {}
 
   // AthenaTestBase:
   virtual void SetUp() override {
     AthenaTestBase::SetUp();
     // Create and install our TestAppContentDelegate with instrumentation.
     test_resource_manager_delegate_ =
         new TestResourceManagerDelegate();
     test_memory_pressure_observer_.reset(new TestMemoryPressureObserver(
         test_resource_manager_delegate_));
@@ skipping 116 matching lines @@
 
   // Even if the value does not change, we should not get any more calls.
   ASSERT_TRUE(WaitForTimer());
   EXPECT_EQ(calls3, test_memory_pressure_observer()->number_of_calls());
   EXPECT_EQ(ResourceManager::MEMORY_PRESSURE_LOW,
             test_memory_pressure_observer()->pressure());
 }
 
 }  // namespace test
 }  // namespace athena