[Ozone-Dri] Set DPMS to off when disabling a display

ui/ozone/platform/dri/native_display_delegate_dri.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/ozone/platform/dri/native_display_delegate_dri.h"
 
 #include "base/bind.h"
 #include "ui/display/types/native_display_observer.h"
 #include "ui/events/ozone/device/device_event.h"
 #include "ui/ozone/platform/dri/display_mode_dri.h"
@@ skipping 182 matching lines @@
 
   if (mode) {
     if (!screen_manager_->ConfigureDisplayController(
             dri_output.crtc(), dri_output.connector(), origin,
             static_cast<const DisplayModeDri*>(mode)->mode_info())) {
       VLOG(1) << "Failed to configure: crtc=" << dri_output.crtc()
               << " connector=" << dri_output.connector();
       return false;
     }
   } else {
+    if (dri_output.dpms_property()) {
+      dri_->SetProperty(dri_output.connector(),
+                        dri_output.dpms_property()->prop_id, DRM_MODE_DPMS_OFF);
+    }
+
     if (!screen_manager_->DisableDisplayController(dri_output.crtc())) {
       VLOG(1) << "Failed to disable crtc=" << dri_output.crtc();
       return false;
     }
   }
 
   return true;
 }
 
 void NativeDisplayDelegateDri::Configure(const DisplaySnapshot& output,
@@ skipping 103 matching lines @@
         std::find_if(old_displays.begin(), old_displays.end(),
                      DisplaySnapshotComparator(new_displays[i]));
 
     if (it == old_displays.end())
       screen_manager_->AddDisplayController(dri_, new_displays[i]->crtc(),
                                             new_displays[i]->connector());
   }
 }
 
 }  // namespace ui