C++11 declares a type safe null pointer

content/common/cursors/webcursor_ozone.cc

Index: content/common/cursors/webcursor_ozone.cc
diff --git a/content/common/cursors/webcursor_ozone.cc b/content/common/cursors/webcursor_ozone.cc
index 39a356d28347a2a5ac646801f3efd080ebcc391e..b04dea52bdaaf0e581434b30a935f42aaf1f9f9b 100644
--- a/content/common/cursors/webcursor_ozone.cc
+++ b/content/common/cursors/webcursor_ozone.cc
@@ -34,13 +34,13 @@ void WebCursor::SetDisplayInfo(const gfx::Display& display) {
   rotation_ = display.rotation();
   if (platform_cursor_)
     ui::CursorFactoryOzone::GetInstance()->UnrefImageCursor(platform_cursor_);
-  platform_cursor_ = NULL;
+  platform_cursor_ = nullptr;
   // It is not necessary to recreate platform_cursor_ yet, since it will be
   // recreated on demand when GetPlatformCursor is called.
 }
 
 void WebCursor::InitPlatformData() {
-  platform_cursor_ = NULL;
+  platform_cursor_ = nullptr;
   device_scale_factor_ = 1.f;
   rotation_ = gfx::Display::ROTATE_0;
 }
@@ -60,7 +60,7 @@ bool WebCursor::IsPlatformDataEqual(const WebCursor& other) const {
 void WebCursor::CleanupPlatformData() {
   if (platform_cursor_) {
     ui::CursorFactoryOzone::GetInstance()->UnrefImageCursor(platform_cursor_);
-    platform_cursor_ = NULL;
+    platform_cursor_ = nullptr;
   }
 }