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

cc/layers/render_surface.cc

Index: cc/layers/render_surface.cc
diff --git a/cc/layers/render_surface.cc b/cc/layers/render_surface.cc
index 15e11875ea2b433478642520037b7ed854d5031c..35dde1008364416cc43956908963b0b13f4daa17 100644
--- a/cc/layers/render_surface.cc
+++ b/cc/layers/render_surface.cc
@@ -18,7 +18,8 @@ RenderSurface::RenderSurface(Layer* owning_layer)
       screen_space_transforms_are_animating_(false),
       is_clipped_(false),
       contributes_to_drawn_surface_(false),
-      nearest_occlusion_immune_ancestor_(NULL) {}
+      nearest_occlusion_immune_ancestor_(nullptr) {
+}
 
 RenderSurface::~RenderSurface() {
   for (size_t i = 0; i < layer_list_.size(); ++i) {