Use bit-fields for space saving in PointerEventsHitRules

Source/core/rendering/PointerEventsHitRules.h

Index: Source/core/rendering/PointerEventsHitRules.h
diff --git a/Source/core/rendering/PointerEventsHitRules.h b/Source/core/rendering/PointerEventsHitRules.h
index 21659e9d526bd7ed9bf7e1a2ce15eadd5e6a7cf9..845f9d252e5582c788c84628e0e3e77874799a7c 100644
--- a/Source/core/rendering/PointerEventsHitRules.h
+++ b/Source/core/rendering/PointerEventsHitRules.h
@@ -35,12 +35,12 @@ public:
 
     PointerEventsHitRules(EHitTesting, const HitTestRequest&, EPointerEvents);
 
-    bool requireVisible;
-    bool requireFill;
-    bool requireStroke;
-    bool canHitStroke;
-    bool canHitFill;
-    bool canHitBoundingBox;
+    unsigned requireVisible : 1;
+    unsigned requireFill : 1;
+    unsigned requireStroke : 1;
+    unsigned canHitStroke : 1;
+    unsigned canHitFill : 1;
+    unsigned canHitBoundingBox : 1;
 };
 
 }