Convert SerialDeviceInfo to a Mojo struct.

device/serial/serial_device_enumerator.h

Index: device/serial/serial_device_enumerator.h
diff --git a/device/serial/serial_device_enumerator.h b/device/serial/serial_device_enumerator.h
index 33c8878c4b9e330505e2fab1548720d26eeb21c0..c1245c73d6b0fd565b7a8651acae0e026e892ef5 100644
--- a/device/serial/serial_device_enumerator.h
+++ b/device/serial/serial_device_enumerator.h
@@ -5,10 +5,9 @@
 #ifndef DEVICE_SERIAL_SERIAL_DEVICE_ENUMERATOR_H_
 #define DEVICE_SERIAL_SERIAL_DEVICE_ENUMERATOR_H_
 
-#include <vector>
-
 #include "base/memory/scoped_ptr.h"
-#include "device/serial/serial_device_info.h"
+#include "device/serial/serial.mojom.h"
+#include "mojo/public/cpp/bindings/array.h"
 
 namespace device {
 
@@ -20,7 +19,7 @@ class SerialDeviceEnumerator {
   SerialDeviceEnumerator();
   virtual ~SerialDeviceEnumerator();
 
-  virtual void GetDevices(SerialDeviceInfoList* devices) = 0;
+  virtual mojo::Array<SerialDeviceInfoPtr> GetDevices() = 0;
 };
 
 }  // namespace device