Move chrome.bluetoothLowEnergy out of //chrome.

chrome/browser/extensions/api/bluetooth_low_energy/utils.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 CHROME_BROWSER_EXTENSIONS_API_BLUETOOTH_LOW_ENERGY_UTILS_H_
-#define CHROME_BROWSER_EXTENSIONS_API_BLUETOOTH_LOW_ENERGY_UTILS_H_
-
-#include <memory>
-
-#include "base/values.h"
-#include "chrome/common/extensions/api/bluetooth_low_energy.h"
-
-namespace extensions {
-namespace api {
-namespace bluetooth_low_energy {
-
-// TODO(armansito): Remove these functions once the described bug is fixed.
-// (See crbug.com/368368)
-
-// Converts a Characteristic to a base::Value. This function is necessary as
-// json_schema_compiler::util::AddItemToList has no template specialization for
-// user defined enums, which get treated as integers. This is because
-// Characteristic contains a list of enum CharacteristicProperty.
-std::unique_ptr<base::DictionaryValue> CharacteristicToValue(
-    Characteristic* from);
-
-// Converts a Descriptor to a base::Value. This function is necessary as a
-// Descriptor embeds a Characteristic and that needs special handling as
-// described above.
-std::unique_ptr<base::DictionaryValue> DescriptorToValue(Descriptor* from);
-
-}  // namespace bluetooth_low_energy
-}  // namespace api
-}  // namespace extensions
-
-#endif  // CHROME_BROWSER_EXTENSIONS_API_BLUETOOTH_LOW_ENERGY_UTILS_H_