C++11 declares a type safe null pointer

content/common/font_config_ipc_linux.cc

Index: content/common/font_config_ipc_linux.cc
diff --git a/content/common/font_config_ipc_linux.cc b/content/common/font_config_ipc_linux.cc
index fcb06ebac0def482978e79011532e8b59804bebd..3985e6d1cf09d20eac3557acdb4ad359fd85cc2b 100644
--- a/content/common/font_config_ipc_linux.cc
+++ b/content/common/font_config_ipc_linux.cc
@@ -23,11 +23,11 @@
 
 namespace content {
 
-// Return a stream from the file descriptor, or NULL on failure.
+// Return a stream from the file descriptor, or nullptr on failure.
 SkStream* StreamFromFD(int fd) {
   skia::RefPtr<SkData> data = skia::AdoptRef(SkData::NewFromFD(fd));
   if (!data) {
-    return NULL;
+    return nullptr;
   }
   return new SkMemoryStream(data.get());
 }
@@ -62,7 +62,7 @@ bool FontConfigIPC::matchFamilyName(const char familyName[],
 
   uint8_t reply_buf[2048];
   const ssize_t r = UnixDomainSocket::SendRecvMsg(fd_, reply_buf,
-                                                  sizeof(reply_buf), NULL,
+                                                  sizeof(reply_buf), nullptr,
                                                   request);
   if (r == -1)
     return false;
@@ -107,7 +107,7 @@ SkStream* FontConfigIPC::openStream(const FontIdentity& identity) {
                                                   &result_fd, request);
 
   if (r == -1)
-    return NULL;
+    return nullptr;
 
   Pickle reply(reinterpret_cast<char*>(reply_buf), r);
   bool result;
@@ -116,7 +116,7 @@ SkStream* FontConfigIPC::openStream(const FontIdentity& identity) {
       !result) {
     if (result_fd)
       CloseFD(result_fd);
-    return NULL;
+    return nullptr;
   }
 
   SkStream* stream = StreamFromFD(result_fd);