Move webkit/blob to new locations.

webkit/blob/blob_data_handle.h

-// Copyright (c) 2013 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 WEBKIT_BLOB_BLOB_DATA_HANDLE_H_
-#define WEBKIT_BLOB_BLOB_DATA_HANDLE_H_
-
-#include <string>
-
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "base/supports_user_data.h"
-#include "webkit/storage/webkit_storage_export.h"
-
-namespace base {
-class SequencedTaskRunner;
-}
-
-namespace webkit_blob {
-
-class BlobData;
-class BlobStorageContext;
-
-// A scoper object for use in chrome's main browser process, ensures
-// the underlying BlobData and its uuid remain in BlobStorageContext's
-// collection for the duration. This object has delete semantics and
-// maybe deleted on any thread.
-class WEBKIT_STORAGE_EXPORT BlobDataHandle
-    : public base::SupportsUserData::Data {
- public:
-  virtual ~BlobDataHandle();  // Maybe be deleted on any thread.
-  BlobData* data() const;  // May only be accessed on the IO thread.
-
- private:
-  friend class BlobStorageContext;
-  BlobDataHandle(BlobData* blob_data, BlobStorageContext* context,
-                 base::SequencedTaskRunner* task_runner);
-
-  static void DeleteHelper(
-      base::WeakPtr<BlobStorageContext> context,
-      BlobData* blob_data);
-
-  BlobData* blob_data_;  // Intentionally a raw ptr to a non-thread-safe ref.
-  base::WeakPtr<BlobStorageContext> context_;
-  scoped_refptr<base::SequencedTaskRunner> io_task_runner_;
-};
-
-}  // namespace webkit_blob
-
-#endif  // WEBKIT_BLOB_BLOB_DATA_HANDLE_H_