[C++11 Allowed Features] Declares a type-safe null pointer converting from NULL to nullptr [part-4]

cc/test/layer_tree_test.cc

Index: cc/test/layer_tree_test.cc
diff --git a/cc/test/layer_tree_test.cc b/cc/test/layer_tree_test.cc
index 2c95269335b1f49d6b849122eed698191f14fdd0..952cf6f7f0857509b06c3f8999f031fdb5832b91 100644
--- a/cc/test/layer_tree_test.cc
+++ b/cc/test/layer_tree_test.cc
@@ -383,7 +383,7 @@ class LayerTreeHostForTesting : public LayerTreeHost {
   LayerTreeHostForTesting(TestHooks* test_hooks,
                           LayerTreeHostClient* client,
                           const LayerTreeSettings& settings)
-      : LayerTreeHost(client, NULL, settings),
+      : LayerTreeHost(client, nullptr, settings),
         shared_bitmap_manager_(new TestSharedBitmapManager()),
         test_hooks_(test_hooks),
         test_started_(false) {}
@@ -522,7 +522,7 @@ void LayerTreeTest::DoBeginTest() {
       client_.get(),
       settings_,
       base::MessageLoopProxy::current(),
-      impl_thread_ ? impl_thread_->message_loop_proxy() : NULL);
+      impl_thread_ ? impl_thread_->message_loop_proxy() : nullptr);
   ASSERT_TRUE(layer_tree_host_);
 
   started_ = true;
@@ -712,7 +712,7 @@ int LayerTreeTest::LastCommittedSourceFrameNumber(LayerTreeHostImpl* impl)
 
 void LayerTreeTest::DestroyLayerTreeHost() {
   if (layer_tree_host_ && layer_tree_host_->root_layer())
-    layer_tree_host_->root_layer()->SetLayerTreeHost(NULL);
+    layer_tree_host_->root_layer()->SetLayerTreeHost(nullptr);
   layer_tree_host_ = nullptr;
 }