WIP POC blob transport over mojo

storage/browser/blob/blob_impl.cc

+// 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.
+
+#include "storage/browser/blob/blob_impl.h"
+
+#include "storage/browser/blob/blob_data_handle.h"
+
+namespace storage {
+
+BlobImpl::BlobImpl(std::unique_ptr<BlobDataHandle> handle,
+                   mojom::BlobRequest request)
+    : handle_(std::move(handle)) {
+  DCHECK(handle_);
+  bindings_.AddBinding(this, std::move(request));
+  bindings_.set_connection_error_handler(
+      base::Bind(&BlobImpl::OnConnectionError, base::Unretained(this)));
+}
+
+void BlobImpl::Clone(mojom::BlobRequest request) {
+  LOG(INFO) << "Cloning " << handle_->uuid();
+  bindings_.AddBinding(this, std::move(request));
+}
+
+void BlobImpl::InternalGetUUID(InternalGetUUIDCallback callback) {
+  LOG(INFO) << "Get UUID from " << handle_->uuid();
+  std::move(callback).Run(handle_->uuid());
+}
+
+BlobImpl::~BlobImpl() {}
+
+void BlobImpl::OnConnectionError() {
+  if (!bindings_.empty())
+    return;
+  LOG(INFO) << "Deleting " << handle_->uuid();
+  delete this;
+}
+
+}  // namespace storage