Oilpan: add transition types to Navigator and its supplements.

Source/modules/gamepad/NavigatorGamepad.cpp

Index: Source/modules/gamepad/NavigatorGamepad.cpp
diff --git a/Source/modules/gamepad/NavigatorGamepad.cpp b/Source/modules/gamepad/NavigatorGamepad.cpp
index 27c1e53322ceece8349fc24a3b5d8f530ab8e7e2..fddb7d02fface76ad791cd91d9fa42200ae053ef 100644
--- a/Source/modules/gamepad/NavigatorGamepad.cpp
+++ b/Source/modules/gamepad/NavigatorGamepad.cpp
@@ -82,10 +82,10 @@ const char* NavigatorGamepad::supplementName()
 
 NavigatorGamepad& NavigatorGamepad::from(Navigator& navigator)
 {
-    NavigatorGamepad* supplement = static_cast<NavigatorGamepad*>(Supplement<Navigator>::from(navigator, supplementName()));
+    NavigatorGamepad* supplement = static_cast<NavigatorGamepad*>(WillBeHeapSupplement<Navigator>::from(navigator, supplementName()));
     if (!supplement) {
         supplement = new NavigatorGamepad();
-        provideTo(navigator, supplementName(), adoptPtr(supplement));
+        provideTo(navigator, supplementName(), adoptPtrWillBeNoop(supplement));
     }
     return *supplement;
 }
@@ -116,4 +116,10 @@ GamepadList* NavigatorGamepad::gamepads()
     return m_gamepads.get();
 }
 
+void NavigatorGamepad::trace(Visitor* visitor)
+{
+    visitor->trace(m_gamepads);
+    visitor->trace(m_webkitGamepads);
+}
+
 } // namespace WebCore