[Ozone-Dri] Adding initial content protection support

ui/ozone/platform/dri/dri_wrapper.cc

Index: ui/ozone/platform/dri/dri_wrapper.cc
diff --git a/ui/ozone/platform/dri/dri_wrapper.cc b/ui/ozone/platform/dri/dri_wrapper.cc
index ff2dc87ab69bd54879c5218cf512b510117a968e..0d395c87c3922685a68e7ff65427909e3c076e3f 100644
--- a/ui/ozone/platform/dri/dri_wrapper.cc
+++ b/ui/ozone/platform/dri/dri_wrapper.cc
@@ -121,6 +121,12 @@ bool DriWrapper::DisableCrtc(uint32_t crtc_id) {
   return !drmModeSetCrtc(fd_, crtc_id, 0, 0, 0, NULL, 0, NULL);
 }
 
+ScopedDrmConnectorPtr DriWrapper::GetConnector(uint32_t connector_id) {
+  DCHECK(fd_ >= 0);
+  TRACE_EVENT1("dri", "DriWrapper::GetConnector", "connector", connector_id);
+  return ScopedDrmConnectorPtr(drmModeGetConnector(fd_, connector_id));
+}
+
 bool DriWrapper::AddFramebuffer(uint32_t width,
                                 uint32_t height,
                                 uint8_t depth,