C++11 declares a type safe null pointer

content/common/gpu/media/v4l2_image_processor.cc

Index: content/common/gpu/media/v4l2_image_processor.cc
diff --git a/content/common/gpu/media/v4l2_image_processor.cc b/content/common/gpu/media/v4l2_image_processor.cc
index 20d91f02e155e41c348fc02703af517eefe8376f..52c52533bc45caebc01a460029e7074bbdbfbc51 100644
--- a/content/common/gpu/media/v4l2_image_processor.cc
+++ b/content/common/gpu/media/v4l2_image_processor.cc
@@ -510,7 +510,7 @@ void V4L2ImageProcessor::Dequeue() {
     InputRecord& input_record = input_buffer_map_[dqbuf.index];
     DCHECK(input_record.at_device);
     input_record.at_device = false;
-    input_record.frame = NULL;
+    input_record.frame = nullptr;
     free_input_buffers_.push_back(dqbuf.index);
     input_buffer_queued_count_--;
   }
@@ -699,7 +699,7 @@ bool V4L2ImageProcessor::StopDevicePoll() {
   for (size_t i = 0; i < input_buffer_map_.size(); ++i) {
     InputRecord& input_record = input_buffer_map_[i];
     input_record.at_device = false;
-    input_record.frame = NULL;
+    input_record.frame = nullptr;
     free_input_buffers_.push_back(i);
   }
   input_buffer_queued_count_ = 0;