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

content/browser/accessibility/browser_accessibility.h

Index: content/browser/accessibility/browser_accessibility.h
diff --git a/content/browser/accessibility/browser_accessibility.h b/content/browser/accessibility/browser_accessibility.h
index 6318e64b53d57043757c69a01388ca5c0e63c35f..131ffdbbfdc68caa2e035727808b88ac342af372 100644
--- a/content/browser/accessibility/browser_accessibility.h
+++ b/content/browser/accessibility/browser_accessibility.h
@@ -84,15 +84,15 @@ class CONTENT_EXPORT BrowserAccessibility {
   // returns true.
   uint32 PlatformChildCount() const;
 
-  // Return a pointer to the child at the given index, or NULL for an
-  // invalid index. Returns NULL if PlatformIsLeaf() returns true.
+  // Return a pointer to the child at the given index, or nullptr for an
+  // invalid index. Returns nullptr if PlatformIsLeaf() returns true.
   BrowserAccessibility* PlatformGetChild(uint32 child_index) const;
 
-  // Return the previous sibling of this object, or NULL if it's the first
+  // Return the previous sibling of this object, or nullptr if it's the first
   // child of its parent.
   BrowserAccessibility* GetPreviousSibling();
 
-  // Return the next sibling of this object, or NULL if it's the last child
+  // Return the next sibling of this object, or nullptr if it's the last child
   // of its parent.
   BrowserAccessibility* GetNextSibling();
 
@@ -138,7 +138,7 @@ class CONTENT_EXPORT BrowserAccessibility {
   //
 
   BrowserAccessibilityManager* manager() const { return manager_; }
-  bool instance_active() const { return node_ != NULL; }
+  bool instance_active() const { return node_ != nullptr; }
   ui::AXNode* node() const { return node_; }
   const std::string& name() const { return name_; }
   const std::string& value() const { return value_; }