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

cc/layers/scrollbar_layer_impl_base.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/scrollbar_layer_impl_base.h"
 
 #include <algorithm>
 #include "cc/trees/layer_tree_impl.h"
 #include "ui/gfx/rect_conversions.h"
 
 namespace cc {
 
 ScrollbarLayerImplBase::ScrollbarLayerImplBase(
     LayerTreeImpl* tree_impl,
     int id,
     ScrollbarOrientation orientation,
     bool is_left_side_vertical_scrollbar,
     bool is_overlay)
     : LayerImpl(tree_impl, id),
-      scroll_layer_(NULL),
-      clip_layer_(NULL),
+      scroll_layer_(nullptr),
+      clip_layer_(nullptr),
       is_overlay_scrollbar_(is_overlay),
       thumb_thickness_scale_factor_(1.f),
       current_pos_(0.f),
       maximum_(0),
       orientation_(orientation),
       is_left_side_vertical_scrollbar_(is_left_side_vertical_scrollbar),
       vertical_adjust_(0.f),
       visible_to_total_length_ratio_(1.f) {}
 
 ScrollbarLayerImplBase::~ScrollbarLayerImplBase() {}
@@ skipping 216 matching lines @@
 }
 
 void ScrollbarLayerImplBase::ScrollbarParametersDidChange(bool on_resize) {
   if (!clip_layer_ || !scroll_layer_)
     return;
 
   scroll_layer_->SetScrollbarPosition(this, clip_layer_, on_resize);
 }
 
 }  // namespace cc