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

cc/blink/web_layer_impl.cc

 // Copyright 2014 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/blink/web_layer_impl.h"
 
 #include "base/bind.h"
 #include "base/debug/trace_event_impl.h"
 #include "base/lazy_instance.h"
 #include "base/strings/string_util.h"
@@ skipping 29 matching lines @@
 using blink::WebFilterOperations;
 
 namespace cc_blink {
 namespace {
 
 bool g_impl_side_painting_enabled = false;
 
 }  // namespace
 
 WebLayerImpl::WebLayerImpl() : layer_(Layer::Create()) {
-  web_layer_client_ = NULL;
+  web_layer_client_ = nullptr;
   layer_->SetLayerClient(this);
 }
 
 WebLayerImpl::WebLayerImpl(scoped_refptr<Layer> layer) : layer_(layer) {
-  web_layer_client_ = NULL;
+  web_layer_client_ = nullptr;
   layer_->SetLayerClient(this);
 }
 
 WebLayerImpl::~WebLayerImpl() {
   layer_->ClearRenderSurface();
-  layer_->set_layer_animation_delegate(NULL);
-  web_layer_client_ = NULL;
+  layer_->set_layer_animation_delegate(nullptr);
+  web_layer_client_ = nullptr;
 }
 
 // static
 bool WebLayerImpl::UsingPictureLayer() {
   return g_impl_side_painting_enabled;
 }
 
 // static
 void WebLayerImpl::SetImplSidePaintingEnabled(bool enabled) {
   g_impl_side_painting_enabled = enabled;
@@ skipping 379 matching lines @@
 
  private:
   virtual ~TracedDebugInfo() {}
   scoped_ptr<blink::WebGraphicsLayerDebugInfo> debug_info_;
   base::ThreadChecker thread_checker_;
 };
 
 scoped_refptr<base::debug::ConvertableToTraceFormat>
 WebLayerImpl::TakeDebugInfo() {
   if (!web_layer_client_)
-    return NULL;
+    return nullptr;
   blink::WebGraphicsLayerDebugInfo* debug_info =
       web_layer_client_->takeDebugInfoFor(this);
 
   if (debug_info)
     return new TracedDebugInfo(debug_info);
   else
-    return NULL;
+    return nullptr;
 }
 
 void WebLayerImpl::setScrollParent(blink::WebLayer* parent) {
-  cc::Layer* scroll_parent = NULL;
+  cc::Layer* scroll_parent = nullptr;
   if (parent)
     scroll_parent = static_cast<WebLayerImpl*>(parent)->layer();
   layer_->SetScrollParent(scroll_parent);
 }
 
 void WebLayerImpl::setClipParent(blink::WebLayer* parent) {
-  cc::Layer* clip_parent = NULL;
+  cc::Layer* clip_parent = nullptr;
   if (parent)
     clip_parent = static_cast<WebLayerImpl*>(parent)->layer();
   layer_->SetClipParent(clip_parent);
 }
 
 Layer* WebLayerImpl::layer() const {
   return layer_.get();
 }
 
 }  // namespace cc_blink