Expose Durable Storage API to script

Source/modules/quota/StorageManager.cpp

+// Copyright 2015 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.
+
+#include "config.h"
+#include "modules/quota/StorageManager.h"
+
+#include "bindings/core/v8/ScriptPromiseResolver.h"
+#include "core/dom/DOMError.h"
+#include "core/dom/Document.h"
+#include "modules/quota/DurableStorageController.h"
+#include "public/platform/modules/quota/WebDurableStorageDispatcher.h"
+
+namespace blink {
+
+class DurableStoragePermissionCallbacks : public WebDurableStoragePermissionCallbacks {
+public:
+    DurableStoragePermissionCallbacks(PassRefPtr<ScriptPromiseResolver> resolver) : m_resolver(resolver)
+    {
+
+    }
+
+    void didGetPermission(WebDurableStoragePermission result) override
+    {
+        m_resolver->resolve(result);
+    }
+
+private:
+    RefPtr<ScriptPromiseResolver> m_resolver;
+};
+
+ScriptPromise StorageManager::requestPersistent(ScriptState* scriptState)
+{
+    WTF_LOG_ERROR("Got into StorageManager::requestPersistent");
+    RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
+    ScriptPromise promise = resolver->promise();
+    ExecutionContext* executionContext = scriptState->executionContext();
+    SecurityOrigin* securityOrigin = executionContext->securityOrigin();
+    if (securityOrigin->isUnique()) {
+        resolver->reject(DOMError::create(NotSupportedError));

[jsbell, 2015/07/01 17:43:29]

Reject with DOMException, not DOMError.

[dgrogan, 2015/07/07 04:03:24]

Done.

+        return promise;
+    }
+    if (executionContext->isDocument()) {
+        Document* document = toDocument(executionContext);
+        if (!document->frame()) {
+            // Do something better?
+            return ScriptPromise();
+        }
+        DurableStorageController* controller = DurableStorageController::from(*document->frame());
+        if (!controller) // needed?

[jsbell, 2015/07/01 17:43:29]

Shouldn't be needed. Did you see this test elsewhere?

[dgrogan, 2015/07/07 04:03:24]

I thought so but don't see it now. In any case I'm going to try to obviate the
need for the controller.

+            return ScriptPromise();
+        blink::WebDurableStorageDispatcher* client = controller->client();
+        ASSERT(client);
+        client->requestPermission(KURL(KURL(), scriptState->executionContext()->securityOrigin()->toString()), new DurableStoragePermissionCallbacks(resolver));
+    } else {
+        // worker
+        resolver->reject(DOMError::create(NotSupportedError));

[jsbell, 2015/07/01 17:43:29]

Reject with DOMException, not DOMError.

[dgrogan, 2015/07/07 04:03:24]

Done.

+        return promise;
+    }
+
+    return promise;
+}
+
+ScriptPromise StorageManager::persistentPermission()
+{
+    ASSERT_NOT_REACHED();
+    return ScriptPromise();
+}
+
+}