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

cc/output/direct_renderer.cc

Index: cc/output/direct_renderer.cc
diff --git a/cc/output/direct_renderer.cc b/cc/output/direct_renderer.cc
index ad39f1a3ed545eb86df989e8efdc993711c4ecf4..52657ac98968e094ae677d8650bc4817027f26d2 100644
--- a/cc/output/direct_renderer.cc
+++ b/cc/output/direct_renderer.cc
@@ -57,7 +57,9 @@ static gfx::Transform window_matrix(int x, int y, int width, int height) {
 namespace cc {
 
 DirectRenderer::DrawingFrame::DrawingFrame()
-    : root_render_pass(NULL), current_render_pass(NULL), current_texture(NULL) {
+    : root_render_pass(nullptr),
+      current_render_pass(nullptr),
+      current_texture(nullptr) {
 }
 
 DirectRenderer::DrawingFrame::~DrawingFrame() {}
@@ -390,7 +392,7 @@ void DirectRenderer::DrawRenderPass(DrawingFrame* frame,
 bool DirectRenderer::UseRenderPass(DrawingFrame* frame,
                                    const RenderPass* render_pass) {
   frame->current_render_pass = render_pass;
-  frame->current_texture = NULL;
+  frame->current_texture = nullptr;
 
   if (render_pass == frame->root_render_pass) {
     BindFramebufferToOutputSurface(frame);