Oilpan: have Navigator and its supplements be on the heap by default.

Source/modules/beacon/NavigatorBeacon.cpp

Index: Source/modules/beacon/NavigatorBeacon.cpp
diff --git a/Source/modules/beacon/NavigatorBeacon.cpp b/Source/modules/beacon/NavigatorBeacon.cpp
index 990ef896287ec354ab0d546b710ed1d29daaa382..06fbcbba72dcb5c1d726c1faed750b88840c83e0 100644
--- a/Source/modules/beacon/NavigatorBeacon.cpp
+++ b/Source/modules/beacon/NavigatorBeacon.cpp
@@ -28,7 +28,7 @@ NavigatorBeacon::NavigatorBeacon(Navigator& navigator)
 
 DEFINE_TRACE(NavigatorBeacon)
 {
-    WillBeHeapSupplement<Navigator>::trace(visitor);
+    HeapSupplement<Navigator>::trace(visitor);
 }
 
 const char* NavigatorBeacon::supplementName()
@@ -38,10 +38,10 @@ const char* NavigatorBeacon::supplementName()
 
 NavigatorBeacon& NavigatorBeacon::from(Navigator& navigator)
 {
-    NavigatorBeacon* supplement = static_cast<NavigatorBeacon*>(WillBeHeapSupplement<Navigator>::from(navigator, supplementName()));
+    NavigatorBeacon* supplement = static_cast<NavigatorBeacon*>(HeapSupplement<Navigator>::from(navigator, supplementName()));
     if (!supplement) {
         supplement = new NavigatorBeacon(navigator);
-        provideTo(navigator, supplementName(), adoptPtrWillBeNoop(supplement));
+        provideTo(navigator, supplementName(), supplement);
     }
     return *supplement;
 }