Blobs: Mechanism for creating Blobs in browser process, then transferring to renderer.

content/public/browser/blob_handle.h

+// 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 CONTENT_PUBLIC_BROWSER_BLOB_HANDLE_H_
+#define CONTENT_PUBLIC_BROWSER_BLOB_HANDLE_H_
+
+#include <string>
+
+namespace content {
+
+// A handle to Blobs that can be stored outside of content/. This class holds
+// a reference to the Blob and should be used to keep alive a Blob.
+class BlobHandle {
+ public:
+  virtual ~BlobHandle() {}
+  virtual std::string GetUUID() = 0;
+
+ protected:
+  BlobHandle() {}
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_BROWSER_BLOB_HANDLE_H_