[WebMIDI] [Android] Set appropriate port properties.

media/midi/usb_midi_output_stream_unittest.cc

Index: media/midi/usb_midi_output_stream_unittest.cc
diff --git a/media/midi/usb_midi_output_stream_unittest.cc b/media/midi/usb_midi_output_stream_unittest.cc
index f682f42ac936da42a04394e20ea3e647f52c641e..3ff179bc42b546e88066f0b80025e4fcdd7032f8 100644
--- a/media/midi/usb_midi_output_stream_unittest.cc
+++ b/media/midi/usb_midi_output_stream_unittest.cc
@@ -26,7 +26,10 @@ class MockUsbMidiDevice : public UsbMidiDevice {
   MockUsbMidiDevice() {}
   ~MockUsbMidiDevice() override {}
 
-  std::vector<uint8> GetDescriptor() override { return std::vector<uint8>(); }
+  std::vector<uint8> GetDescriptors() override { return std::vector<uint8>(); }
+  std::string GetManufacturer() override { return std::string(); }
+  std::string GetProductName() override { return std::string(); }
+  uint16 GetDeviceVersion() override { return 0; }
 
   void Send(int endpoint_number, const std::vector<uint8>& data) override {
     for (size_t i = 0; i < data.size(); ++i) {