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

content/browser/accessibility/browser_accessibility.cc

Index: content/browser/accessibility/browser_accessibility.cc
diff --git a/content/browser/accessibility/browser_accessibility.cc b/content/browser/accessibility/browser_accessibility.cc
index a700e9a9fd30538f4703fdf92d837a50058eb2c0..34ae14d5cc9a5d9e3932ea77bcfd0d0509182787 100644
--- a/content/browser/accessibility/browser_accessibility.cc
+++ b/content/browser/accessibility/browser_accessibility.cc
@@ -25,8 +25,8 @@ BrowserAccessibility* BrowserAccessibility::Create() {
 #endif
 
 BrowserAccessibility::BrowserAccessibility()
-    : manager_(NULL),
-      node_(NULL) {
+    : manager_(nullptr),
+      node_(nullptr) {
 }
 
 BrowserAccessibility::~BrowserAccessibility() {
@@ -100,7 +100,7 @@ BrowserAccessibility* BrowserAccessibility::GetPreviousSibling() {
   if (GetParent() && GetIndexInParent() > 0)
     return GetParent()->InternalGetChild(GetIndexInParent() - 1);
 
-  return NULL;
+  return nullptr;
 }
 
 BrowserAccessibility* BrowserAccessibility::GetNextSibling() {
@@ -111,7 +111,7 @@ BrowserAccessibility* BrowserAccessibility::GetNextSibling() {
     return GetParent()->InternalGetChild(GetIndexInParent() + 1);
   }
 
-  return NULL;
+  return nullptr;
 }
 
 uint32 BrowserAccessibility::InternalChildCount() const {
@@ -123,24 +123,24 @@ uint32 BrowserAccessibility::InternalChildCount() const {
 BrowserAccessibility* BrowserAccessibility::InternalGetChild(
     uint32 child_index) const {
   if (!node_ || !manager_)
-    return NULL;
+    return nullptr;
   return manager_->GetFromAXNode(node_->children()[child_index]);
 }
 
 BrowserAccessibility* BrowserAccessibility::GetParent() const {
   if (!node_ || !manager_)
-    return NULL;
+    return nullptr;
   ui::AXNode* parent = node_->parent();
   if (parent)
     return manager_->GetFromAXNode(parent);
 
   if (!manager_->delegate())
-    return NULL;
+    return nullptr;
 
   BrowserAccessibility* host_node =
       manager_->delegate()->AccessibilityGetParentFrame();
   if (!host_node)
-    return NULL;
+    return nullptr;
 
   return host_node->GetParent();
 }
@@ -340,9 +340,9 @@ gfx::Rect BrowserAccessibility::GetGlobalBoundsForRange(int start, int len)
 BrowserAccessibility* BrowserAccessibility::BrowserAccessibilityForPoint(
     const gfx::Point& point) {
   // The best result found that's a child of this object.
-  BrowserAccessibility* child_result = NULL;
+  BrowserAccessibility* child_result = nullptr;
   // The best result that's an indirect descendant like grandchild, etc.
-  BrowserAccessibility* descendant_result = NULL;
+  BrowserAccessibility* descendant_result = nullptr;
 
   // Walk the children recursively looking for the BrowserAccessibility that
   // most tightly encloses the specified point. Walk backwards so that in
@@ -388,8 +388,8 @@ void BrowserAccessibility::Destroy() {
   value_.clear();
 
   manager_->NotifyAccessibilityEvent(ui::AX_EVENT_HIDE, this);
-  node_ = NULL;
-  manager_ = NULL;
+  node_ = nullptr;
+  manager_ = nullptr;
 
   NativeReleaseReference();
 }