Oilpan: move WorkerGlobalScope to oilpan's heap.

Source/modules/quota/WorkerNavigatorStorageQuota.h

Index: Source/modules/quota/WorkerNavigatorStorageQuota.h
diff --git a/Source/modules/quota/WorkerNavigatorStorageQuota.h b/Source/modules/quota/WorkerNavigatorStorageQuota.h
index a69c1be1d2c8570c81f123c3efa44247528fba02..f97a58c13c706e279c90473a101d7a47ff7a3777 100644
--- a/Source/modules/quota/WorkerNavigatorStorageQuota.h
+++ b/Source/modules/quota/WorkerNavigatorStorageQuota.h
@@ -39,7 +39,7 @@
 
 namespace WebCore {
 
-class WorkerNavigatorStorageQuota FINAL : public Supplement<WorkerNavigator> {
+class WorkerNavigatorStorageQuota FINAL : public NoBaseWillBeGarbageCollected<WorkerNavigatorStorageQuota>, public WillBeHeapSupplement<WorkerNavigator> {

[haraken, 2014/02/27 02:46:01]

It's a shame that we have to add NoBaseWillBeGarbageCollected to all
supplementing classes.

Would it be possible to remove NoBaseWillBeGarbageCollected by making
HeapSupplement inherit GarbageCollected if T==WorkerNavigator?

[Mads Ager (chromium), 2014/02/27 06:41:47]

In my opinion that would be too magical. However, we should attempt to make it a
compile-time error to put something that is not GarbageCollected into a Member.
I propose to do that as a separate changelist.

 public:
     virtual ~WorkerNavigatorStorageQuota();
     static WorkerNavigatorStorageQuota& from(WorkerNavigator&);
@@ -49,12 +49,14 @@ public:
     DeprecatedStorageQuota* webkitTemporaryStorage() const;
     DeprecatedStorageQuota* webkitPersistentStorage() const;
 
+    virtual void trace(Visitor*);
+
 private:
     explicit WorkerNavigatorStorageQuota();
     static const char* supplementName();
 
-    mutable RefPtrWillBePersistent<DeprecatedStorageQuota> m_temporaryStorage;
-    mutable RefPtrWillBePersistent<DeprecatedStorageQuota> m_persistentStorage;
+    mutable RefPtrWillBeMember<DeprecatedStorageQuota> m_temporaryStorage;
+    mutable RefPtrWillBeMember<DeprecatedStorageQuota> m_persistentStorage;
 };
 
 } // namespace WebCore