Replace manual conversions with Mojo type mappings

media/capture/video/video_capture_device_descriptor.h

Index: media/capture/video/video_capture_device_descriptor.h
diff --git a/media/capture/video/video_capture_device_descriptor.h b/media/capture/video/video_capture_device_descriptor.h
index 9bfbddedd78df736651e67086a0fcc2c3822d012..ea2331a17bc4b9b2ad76ddb24c3fdabb2362a113 100644
--- a/media/capture/video/video_capture_device_descriptor.h
+++ b/media/capture/video/video_capture_device_descriptor.h
@@ -5,8 +5,8 @@
 #ifndef MEDIA_CAPTURE_VIDEO_VIDEO_CAPTURE_DEVICE_DESCRIPTOR_H_
 #define MEDIA_CAPTURE_VIDEO_VIDEO_CAPTURE_DEVICE_DESCRIPTOR_H_
 
-#include <list>
 #include <string>
+#include <vector>
 
 #include "media/capture/capture_export.h"
 
@@ -84,7 +84,7 @@ struct CAPTURE_EXPORT VideoCaptureDeviceDescriptor {
   VideoCaptureTransportType transport_type;
 };
 
-using VideoCaptureDeviceDescriptors = std::list<VideoCaptureDeviceDescriptor>;
+using VideoCaptureDeviceDescriptors = std::vector<VideoCaptureDeviceDescriptor>;
 
 }  // namespace media