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

cc/trees/single_thread_proxy.cc

Index: cc/trees/single_thread_proxy.cc
diff --git a/cc/trees/single_thread_proxy.cc b/cc/trees/single_thread_proxy.cc
index 64e2ab3d15447368f32fa89320b4ba78764c1252..041ed730d5d6d5a7c54bdd95712d6d9e30b3dcfc 100644
--- a/cc/trees/single_thread_proxy.cc
+++ b/cc/trees/single_thread_proxy.cc
@@ -33,7 +33,7 @@ SingleThreadProxy::SingleThreadProxy(
     LayerTreeHost* layer_tree_host,
     LayerTreeHostSingleThreadClient* client,
     scoped_refptr<base::SingleThreadTaskRunner> main_task_runner)
-    : Proxy(main_task_runner, NULL),
+    : Proxy(main_task_runner, nullptr),
       layer_tree_host_(layer_tree_host),
       client_(client),
       timing_history_(layer_tree_host->rendering_stats_instrumentation()),
@@ -205,7 +205,7 @@ void SingleThreadProxy::DoCommit(const BeginFrameArgs& begin_frame_args) {
 
     scoped_ptr<ResourceUpdateController> update_controller =
         ResourceUpdateController::Create(
-            NULL,
+            nullptr,
             MainThreadTaskRunner(),
             queue.Pass(),
             layer_tree_host_impl_->resource_provider());
@@ -316,7 +316,7 @@ void SingleThreadProxy::Stop() {
     scheduler_on_impl_thread_ = nullptr;
     layer_tree_host_impl_ = nullptr;
   }
-  layer_tree_host_ = NULL;
+  layer_tree_host_ = nullptr;
 }
 
 void SingleThreadProxy::OnCanDrawStateChanged(bool can_draw) {