Oilpan: add transition types to Navigator and its supplements.

Source/modules/gamepad/NavigatorGamepad.cpp

 /*
  * Copyright (C) 2011, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 64 matching lines @@
 {
 }
 
 const char* NavigatorGamepad::supplementName()
 {
     return "NavigatorGamepad";
 }
 
 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;
 }
 
 WebKitGamepadList* NavigatorGamepad::webkitGetGamepads(Navigator& navigator)
 {
     return NavigatorGamepad::from(navigator).webkitGamepads();
 }
 
 GamepadList* NavigatorGamepad::getGamepads(Navigator& navigator)
@@ skipping 10 matching lines @@
 }
 
 GamepadList* NavigatorGamepad::gamepads()
 {
     if (!m_gamepads)
         m_gamepads = GamepadList::create();
     sampleGamepads<Gamepad>(m_gamepads.get());
     return m_gamepads.get();
 }
 
+void NavigatorGamepad::trace(Visitor* visitor)
+{
+    visitor->trace(m_gamepads);
+    visitor->trace(m_webkitGamepads);
+}
+
 } // namespace WebCore