Bug 1838415 - Introduce RFPTarget::DeviceSensors. r=tjr

Differential Revision: https://phabricator.services.mozilla.com/D181237

dom/system/nsDeviceSensors.cpp

@@ -553,5 +553,5 @@ bool nsDeviceSensors::IsSensorAllowedByPref(uint32_t aType,
     return true;
   }
   return !nsGlobalWindowInner::Cast(window)->ShouldResistFingerprinting(
-      RFPTarget::Unknown);
+      RFPTarget::DeviceSensors);
 }

toolkit/components/resistfingerprinting/RFPTargets.inc

@@ -65,6 +65,7 @@ ITEM_VALUE(MouseEventScreenPoint,       1llu << 41)
 // Visibility level of font families available to CSS font-matching
 ITEM_VALUE(FontVisibilityBaseSystem,    1llu << 42)
 ITEM_VALUE(FontVisibilityLangPack,      1llu << 43)
+ITEM_VALUE(DeviceSensors,               1llu << 44)
 
 // !!! Don't forget to update kDefaultFingerintingProtections in nsRFPService.cpp
 // if necessary.