Reland of "Introducing the WebServiceWorkerCache."

public/platform/WebServiceWorkerCache.h

Index: public/platform/WebServiceWorkerCache.h
diff --git a/public/platform/WebServiceWorkerCache.h b/public/platform/WebServiceWorkerCache.h
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index 0000000000000000000000000000000000000000..285cf4f85e55e0c49452638d53c60859d1195256
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+++ b/public/platform/WebServiceWorkerCache.h
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+// 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 WebServiceWorkerCache_h
+#define WebServiceWorkerCache_h
+
+#include "public/platform/WebCallbacks.h"
+#include "public/platform/WebCommon.h"
+#include "public/platform/WebServiceWorkerCacheError.h"
+#include "public/platform/WebServiceWorkerRequest.h"
+#include "public/platform/WebServiceWorkerResponse.h"
+#include "public/platform/WebString.h"
+#include "public/platform/WebVector.h"
+
+namespace blink {
+
+// The Service Worker Cache API. The embedder provides the implementation of the Cache to Blink. Blink uses the interface
+// to operate on entries.
+// This object is owned by Blink, and should be destroyed as each Cache instance is no longer in use.
+class WebServiceWorkerCache {
+public:
+    typedef WebCallbacks<WebServiceWorkerResponse, WebServiceWorkerCacheError> CacheMatchCallbacks;
+    typedef WebCallbacks<WebVector<WebServiceWorkerResponse>, WebServiceWorkerCacheError> CacheWithResponsesCallbacks;
+    typedef WebCallbacks<WebVector<WebServiceWorkerRequest>, WebServiceWorkerCacheError> CacheWithRequestsCallbacks;
+
+    virtual ~WebServiceWorkerCache() { }
+
+    // Options that affect the scope of searches.
+    struct QueryParams {
+        QueryParams() : ignoreSearch(false), ignoreMethod(false), ignoreVary(false), prefixMatch(false) { }
+
+        bool ignoreSearch;
+        bool ignoreMethod;
+        bool ignoreVary;
+        bool prefixMatch;
+        WebString cacheName;
+    };
+
+    enum OperationType {
+        OperationTypeUndefined,
+        OperationTypePut,
+        OperationTypeDelete,
+        OperationTypeLast = OperationTypeDelete
+    };
+
+    struct BatchOperation {
+        BatchOperation() : operationType(OperationTypeUndefined) { }
+
+        OperationType operationType;
+        WebServiceWorkerRequest request;
+        WebServiceWorkerResponse response;
+        QueryParams matchParams;
+    };
+
+    WebServiceWorkerCache() { }
+
+    // Ownership of the Cache*Callbacks methods passes to the WebServiceWorkerCache instance, which will delete it after
+    // calling onSuccess or onFailure.
+    virtual void dispatchMatch(CacheMatchCallbacks*, const WebServiceWorkerRequest&, const QueryParams&) = 0;
+    virtual void dispatchMatchAll(CacheWithResponsesCallbacks*, const WebServiceWorkerRequest&, const QueryParams&) = 0;
+    virtual void dispatchKeys(CacheWithRequestsCallbacks*, const WebServiceWorkerRequest*, const QueryParams&) = 0;
+    virtual void dispatchBatch(CacheWithResponsesCallbacks*, const WebVector<BatchOperation>&) = 0;
+};
+
+} // namespace blink
+
+#endif // WebServiceWorkerCache_h