Expose Durable Storage API to script

Source/modules/quota/StorageManager.h

Index: Source/modules/quota/StorageManager.h
diff --git a/Source/modules/quota/StorageManager.h b/Source/modules/quota/StorageManager.h
new file mode 100644
index 0000000000000000000000000000000000000000..7d91a79c8be19f0c802e0e7733b5450ab9cc78c7
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+++ b/Source/modules/quota/StorageManager.h
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+// 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.
+
+#ifndef StorageManager_h
+#define StorageManager_h
+
+#include "bindings/core/v8/ScriptPromise.h"

[jsbell, 2015/08/03 19:57:41]

Can ScriptPromise and ScriptState be forward-declarations rather than #includes?

[dgrogan, 2015/08/06 23:52:02]

Done.

+#include "bindings/core/v8/ScriptState.h"
+#include "bindings/core/v8/ScriptWrappable.h"
+#include "platform/heap/Heap.h"
+
+namespace blink {
+
+class StorageManager final : public GarbageCollected<StorageManager>, public ScriptWrappable { // Cargo culted

[jsbell, 2015/08/03 19:57:41]

Ditch the 'cargo culted' comments. This is correct.

[dgrogan, 2015/08/06 23:52:02]

Thanks!

+DEFINE_WRAPPERTYPEINFO(); // Cargo culted
+public:
+    ScriptPromise requestPersistent(ScriptState*);
+    ScriptPromise persistentPermission(ScriptState*);
+    DEFINE_INLINE_TRACE() { } // Cargo culted

[mlamouri (slow - plz ping), 2015/08/04 13:15:19]

Inlining isn't recommended:
https://www.chromium.org/developers/coding-style#TOC-Inline-functions

Could you DECLARE_TRACE() / DEFINE_TRACE() ?

[dgrogan, 2015/08/06 23:52:02]

Done. Though note that the blink style guide is mostly silent on inline
functions. And it doesn't generally refer back to the chromium style guide, only
in specific situations.

+};
+
+} // namespace blink
+
+#endif // StorageManager_h