Reland: VideoCapture: migrate VideoCapture renderer-->host messages to mojo, part 1

content/renderer/media/video_capture_message_filter.cc

Index: content/renderer/media/video_capture_message_filter.cc
diff --git a/content/renderer/media/video_capture_message_filter.cc b/content/renderer/media/video_capture_message_filter.cc
index aad0da8e747140d83ce7216bd9e383734063b0c2..51fc336f1ec0aceb644334fbc4a19f830bfc79d8 100644
--- a/content/renderer/media/video_capture_message_filter.cc
+++ b/content/renderer/media/video_capture_message_filter.cc
@@ -11,9 +11,7 @@
 namespace content {
 
 VideoCaptureMessageFilter::VideoCaptureMessageFilter()
-    : last_device_id_(0),
-      sender_(NULL) {
-}
+    : last_device_id_(0), sender_(nullptr) {}
 
 void VideoCaptureMessageFilter::AddDelegate(Delegate* delegate) {
   if (++last_device_id_ <= 0)
@@ -84,11 +82,11 @@ void VideoCaptureMessageFilter::OnFilterAdded(IPC::Channel* channel) {
 }
 
 void VideoCaptureMessageFilter::OnFilterRemoved() {
-  sender_ = NULL;
+  sender_ = nullptr;
 }
 
 void VideoCaptureMessageFilter::OnChannelClosing() {
-  sender_ = NULL;
+  sender_ = nullptr;
 }
 
 VideoCaptureMessageFilter::~VideoCaptureMessageFilter() {}