WIP POC blob transport over mojo

storage/browser/blob/blob_impl.h

Index: storage/browser/blob/blob_impl.h
diff --git a/storage/browser/blob/blob_impl.h b/storage/browser/blob/blob_impl.h
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+// Copyright 2017 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 STORAGE_BROWSER_BLOB_BLOB_IMPL_H_
+#define STORAGE_BROWSER_BLOB_BLOB_IMPL_H_
+
+#include "mojo/public/cpp/bindings/binding_set.h"
+#include "third_party/WebKit/public/platform/blobs.mojom.h"
+
+namespace storage {
+
+class BlobDataHandle;
+
+// Self destroys when no more bindings exist.
+class BlobImpl : public mojom::Blob {
+ public:
+  BlobImpl(std::unique_ptr<BlobDataHandle> handle, mojom::BlobRequest request);
+
+  void Clone(mojom::BlobRequest request) override;
+  void InternalGetUUID(InternalGetUUIDCallback callback) override;
+
+ private:
+  ~BlobImpl() override;
+  void OnConnectionError();
+
+  std::unique_ptr<BlobDataHandle> handle_;
+
+  mojo::BindingSet<mojom::Blob> bindings_;
+};
+
+}  // namespace storage
+
+#endif  // STORAGE_BROWSER_BLOB_BLOB_IMPL_H_