Web MIDI: make input_ports_ and output_ports_ members private

content/browser/renderer_host/media/midi_host.cc

Index: content/browser/renderer_host/media/midi_host.cc
diff --git a/content/browser/renderer_host/media/midi_host.cc b/content/browser/renderer_host/media/midi_host.cc
index 9c85b73968d9a3829f240c2a504ab2be3f38b369..7a934878e2716654f83ce56366189529b8251938 100644
--- a/content/browser/renderer_host/media/midi_host.cc
+++ b/content/browser/renderer_host/media/midi_host.cc
@@ -123,8 +123,8 @@ void MidiHost::CompleteStartSession(int client_id, media::MidiResult result) {
   MidiPortInfoList output_ports;
 
   if (result == media::MIDI_OK) {
-    input_ports = midi_manager_->input_ports();
-    output_ports = midi_manager_->output_ports();
+    input_ports = midi_manager_->get_input_ports();
+    output_ports = midi_manager_->get_output_ports();
     received_messages_queues_.clear();
     received_messages_queues_.resize(input_ports.size());
     // ChildSecurityPolicy is set just before OnStartSession by