Introducing the WebServiceWorkerCacheStorage.

Source/modules/serviceworkers/CacheStorage.h

Index: Source/modules/serviceworkers/CacheStorage.h
diff --git a/Source/modules/serviceworkers/CacheStorage.h b/Source/modules/serviceworkers/CacheStorage.h
index 6d9176be90e9fa65738a6467152c2222f14799c6..81b294640410d57b9f0f8768e5fe9605865de926 100644
--- a/Source/modules/serviceworkers/CacheStorage.h
+++ b/Source/modules/serviceworkers/CacheStorage.h
@@ -12,6 +12,10 @@
 #include "wtf/Noncopyable.h"
 #include "wtf/RefCounted.h"
 
+namespace blink {
+class WebServiceWorkerCacheStorage;
+}
+
 namespace WebCore {
 
 // See https://slightlyoff.github.io/ServiceWorker/spec/service_worker/index.html#cache-storage
@@ -19,7 +23,7 @@ namespace WebCore {
 class CacheStorage FINAL : public RefCountedWillBeGarbageCollected<CacheStorage>, public ScriptWrappable {
     WTF_MAKE_NONCOPYABLE(CacheStorage);
 public:
-    static PassRefPtrWillBeRawPtr<CacheStorage> create();
+    static PassRefPtrWillBeRawPtr<CacheStorage> create(blink::WebServiceWorkerCacheStorage*);
 
     ScriptPromise createFunction(ScriptState*, const String& key);
     ScriptPromise rename(ScriptState*, const String& oldKey, const String& newKey);
@@ -30,7 +34,9 @@ public:
     void trace(Visitor*) { }
 
 private:
-    CacheStorage();
+    explicit CacheStorage(blink::WebServiceWorkerCacheStorage*);
+
+    blink::WebServiceWorkerCacheStorage* m_webCacheStorage;
 };
 
 } // namespace WebCore