Introducing the WebServiceWorkerCacheStorage.

public/platform/WebServiceWorkerCacheStorage.h

Index: public/platform/WebServiceWorkerCacheStorage.h
diff --git a/public/platform/WebServiceWorkerCacheStorage.h b/public/platform/WebServiceWorkerCacheStorage.h
new file mode 100644
index 0000000000000000000000000000000000000000..05c05e30271dc7a544a7f2af547d5079157db834
--- /dev/null
+++ b/public/platform/WebServiceWorkerCacheStorage.h
@@ -0,0 +1,45 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef WebServiceWorkerCacheStorage_h
+#define WebServiceWorkerCacheStorage_h
+
+#include "WebCommon.h"
+#include "public/platform/WebCallbacks.h"
+#include "public/platform/WebString.h"
+#include "public/platform/WebVector.h"
+
+namespace WebCore { class ServiceWorker; }

[michaeln, 2014/07/25 20:25:19]

needed?

[gavinp, 2014/07/28 02:10:17]

Nope.

+
+namespace blink {
+
+// An interface to the CacheStorage API, implemented by the embedder and passed in to blink.

[michaeln, 2014/07/25 20:25:19]

very helpful to describe who implements vs who consumes

[gavinp, 2014/07/28 02:10:17]

Just tried to make the comment more verbose; does the new working make this more
clear?

+class WebServiceWorkerCacheStorage {
+public:
+    enum CacheStorageError {
+        CacheStorageErrorNotImplemented,
+        CacheStorageErrorNotFound,
+        CacheStorageErrorExists,
+        CacheStorageErrorLast = CacheStorageErrorExists
+    };
+
+    typedef WebCallbacks<void, CacheStorageError> CacheStorageCallbacks;
+    typedef WebCallbacks<int /* cacheID */, CacheStorageError> CacheStorageWithCacheCallbacks;
+    typedef WebCallbacks<WebVector<WebString>, CacheStorageError> CacheStorageKeysCallbacks;
+
+    WebServiceWorkerCacheStorage() { }
+    virtual ~WebServiceWorkerCacheStorage() { }
+
+    // Ownership of the CacheStorage*Callbacks methods passes to the WebServiceWorkerCacheStorage
+    // instance, which will delete it after calling onSuccess or onFailure.
+    virtual void dispatchCreate(CacheStorageWithCacheCallbacks*, const WebString& key) = 0;
+    virtual void dispatchRename(CacheStorageCallbacks*, const WebString& oldKey, const WebString& newKey) = 0;
+    virtual void dispatchGet(CacheStorageWithCacheCallbacks*, const WebString& key) = 0;
+    virtual void dispatchDelete(CacheStorageCallbacks*, const WebString& key) = 0;
+    virtual void dispatchKeys(CacheStorageKeysCallbacks*) = 0;
+};
+
+} // namespace blink
+
+#endif // WebServiceWorkerCacheStorage_h