C++11 declares a type safe null pointer

content/common/gpu/media/vaapi_h264_decoder_unittest.cc

Index: content/common/gpu/media/vaapi_h264_decoder_unittest.cc
diff --git a/content/common/gpu/media/vaapi_h264_decoder_unittest.cc b/content/common/gpu/media/vaapi_h264_decoder_unittest.cc
index 70d8220ddbe2c494788a52294a830680c1494cfd..3147658311a771c7e30a89795666610812c64ce5 100644
--- a/content/common/gpu/media/vaapi_h264_decoder_unittest.cc
+++ b/content/common/gpu/media/vaapi_h264_decoder_unittest.cc
@@ -96,7 +96,7 @@ class VaapiH264DecoderLoop {
 };
 
 VaapiH264DecoderLoop::VaapiH264DecoderLoop()
-    : x_display_(NULL), num_outputted_pictures_(0), num_surfaces_(0) {
+    : x_display_(nullptr), num_outputted_pictures_(0), num_surfaces_(0) {
   base::MD5Init(&md5_context_);
 }
 
@@ -118,7 +118,7 @@ void LogOnError(VaapiH264Decoder::VAVDAH264DecoderFailure error) {
 
 bool VaapiH264DecoderLoop::Initialize(base::FilePath input_file,
                                       base::FilePath output_file) {
-  x_display_ = XOpenDisplay(NULL);
+  x_display_ = XOpenDisplay(nullptr);
   if (!x_display_) {
     LOG(ERROR) << "Can't open X display";
     return false;
@@ -151,7 +151,7 @@ bool VaapiH264DecoderLoop::Initialize(base::FilePath input_file,
   // This creates or truncates output_file.
   // Without it, AppendToFile() will not work.
   if (!output_file.empty()) {
-    if (base::WriteFile(output_file, NULL, 0) != 0) {
+    if (base::WriteFile(output_file, nullptr, 0) != 0) {
       return false;
     }
     output_file_ = output_file;