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

cc/layers/layer_position_constraint_unittest.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/layers/layer_position_constraint.h"
 
 #include <vector>
 
 #include "cc/layers/layer_impl.h"
 #include "cc/test/fake_impl_proxy.h"
@@ skipping 38 matching lines @@
   LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
       root_layer, device_viewport_size, &dummy_render_surface_layer_list);
   inputs.device_scale_factor = device_scale_factor;
   inputs.page_scale_factor = page_scale_factor;
   inputs.page_scale_application_layer = page_scale_application_layer;
   inputs.can_use_lcd_text = can_use_lcd_text;
   LayerTreeHostCommon::CalculateDrawProperties(&inputs);
 }
 
 void ExecuteCalculateDrawProperties(LayerImpl* root_layer) {
-  LayerImpl* page_scale_application_layer = NULL;
+  LayerImpl* page_scale_application_layer = nullptr;
   ExecuteCalculateDrawProperties(
       root_layer, 1.f, 1.f, page_scale_application_layer, false);
 }
 
 class LayerPositionConstraintTest : public testing::Test {
  public:
   LayerPositionConstraintTest() : host_impl_(&proxy_, &shared_bitmap_manager_) {
     root_ = CreateTreeForTest();
     scroll_ = root_->children()[0];
     fixed_to_top_left_.set_is_fixed_position(true);
@@ skipping 1079 matching lines @@
                                   fixed_to_container1->draw_transform());
 
   EXPECT_TRANSFORMATION_MATRIX_EQ(expected_container2_transform,
                                   container2->draw_transform());
 
   EXPECT_TRANSFORMATION_MATRIX_EQ(expected_fixed_to_container2_transform,
                                   fixed_to_container2->draw_transform());
 }
 }  // namespace
 }  // namespace cc