C++11 declares a type safe null pointer

content/common/set_process_title.h

Index: content/common/set_process_title.h
diff --git a/content/common/set_process_title.h b/content/common/set_process_title.h
index 91ea61a89a1a5795fb0aba513c652f73831fbedd..0833c46a1f9ce174db6089c8e77cef0870da7643 100644
--- a/content/common/set_process_title.h
+++ b/content/common/set_process_title.h
@@ -10,7 +10,7 @@ namespace content {
 // does nothing if the OS doesn't support or need this capability.
 //
 // Pass in the argv from main(). On Windows, where there is no argv, you can
-// pass NULL or just don't call this function, since it does nothing. This
+// pass nullptr or just don't call this function, since it does nothing. This
 // argv pointer will be cached so if you call this function again, you can pass
 // NULL in the second call. This is to support the case where it's called once
 // at startup, and later when a zygote is fork()ed. The later call doesn't have