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

cc/test/layer_tree_json_parser.cc

 // Copyright 2013 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 "cc/test/layer_tree_json_parser.h"
 
 #include "base/test/values_test_util.h"
 #include "base/values.h"
 #include "cc/layers/content_layer.h"
 #include "cc/layers/layer.h"
@@ skipping 62 matching lines @@
     bitmap.setImmutable();
     nine_patch_layer->SetBitmap(bitmap);
     nine_patch_layer->SetAperture(
         gfx::Rect(aperture_x, aperture_y, aperture_width, aperture_height));
     nine_patch_layer->SetBorder(
         gfx::Rect(border_x, border_y, border_width, border_height));
     nine_patch_layer->SetFillCenter(fill_center);
 
     new_layer = nine_patch_layer;
   } else if (layer_type == "TextureLayer") {
-    new_layer = TextureLayer::CreateForMailbox(NULL);
+    new_layer = TextureLayer::CreateForMailbox(nullptr);
   } else if (layer_type == "PictureLayer") {
     new_layer = PictureLayer::Create(content_client);
   } else {  // Type "Layer" or "unknown"
     new_layer = Layer::Create();
   }
   new_layer->SetPosition(gfx::PointF(position_x, position_y));
   new_layer->SetBounds(gfx::Size(width, height));
   new_layer->SetIsDrawable(draws_content);
 
   double opacity;
@@ skipping 64 matching lines @@
   layer_transform.matrix().setColMajord(transform);
   new_layer->SetTransform(layer_transform);
 
   success &= dict->GetList("Children", &list);
   for (base::ListValue::const_iterator it = list->begin();
        it != list->end(); ++it) {
     new_layer->AddChild(ParseTreeFromValue(*it, content_client));
   }
 
   if (!success)
-    return NULL;
+    return nullptr;
 
   return new_layer;
 }
 
 }  // namespace
 
 scoped_refptr<Layer> ParseTreeFromJson(std::string json,
                                        ContentLayerClient* content_client) {
   scoped_ptr<base::Value> val = base::test::ParseJson(json);
   return ParseTreeFromValue(val.get(), content_client);
 }
 
 }  // namespace cc