Expose durable storage to workers.

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 9267a393e7dfa39bedf6c6ec5ea1a1f3707c5172..5dbf9f3d56129a8798c11080c16c39b6b48224d1 100644
--- a/Source/modules/quota/WorkerNavigatorStorageQuota.h
+++ b/Source/modules/quota/WorkerNavigatorStorageQuota.h
@@ -39,6 +39,8 @@
 
 namespace blink {
 
+class StorageManager;
+
 class WorkerNavigatorStorageQuota final : public GarbageCollected<WorkerNavigatorStorageQuota>, public HeapSupplement<WorkerNavigator> {
     USING_GARBAGE_COLLECTED_MIXIN(WorkerNavigatorStorageQuota);
 public:
@@ -46,8 +48,11 @@ public:
 
     static DeprecatedStorageQuota* webkitTemporaryStorage(WorkerNavigator&);
     static DeprecatedStorageQuota* webkitPersistentStorage(WorkerNavigator&);
+    static StorageManager* storage(WorkerNavigator&);
+
     DeprecatedStorageQuota* webkitTemporaryStorage() const;
     DeprecatedStorageQuota* webkitPersistentStorage() const;
+    StorageManager* storage() const;
 
     DECLARE_VIRTUAL_TRACE();
 
@@ -57,6 +62,7 @@ private:
 
     mutable Member<DeprecatedStorageQuota> m_temporaryStorage;
     mutable Member<DeprecatedStorageQuota> m_persistentStorage;
+    mutable Member<StorageManager> m_storageManager;
 };
 
 } // namespace blink