bluetooth: Expose service data from BlueZ

device/bluetooth/bluetooth_device.h

 // Copyright (c) 2012 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 DEVICE_BLUETOOTH_BLUETOOTH_DEVICE_H_
 #define DEVICE_BLUETOOTH_BLUETOOTH_DEVICE_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 299 matching lines @@
   //  * For classic Bluetooth devices this data is collected from both the EIR
   //    data and SDP tables.
   //  * For non-connected Low Energy Devices this returns the latest advertised
   //    UUIDs.
   //  * For connected Low Energy Devices for which services have not been
   //    discovered returns an empty list.
   //  * For connected Low Energy Devices for which services have been discovered
   //    returns the UUIDs of the device's services.
   //  * For dual mode devices this may be collected from both.
   //
-  // Note: On ChromeOS and Linux, Bluez persists all services meaning if
+  // Note: On ChromeOS and Linux, BlueZ persists all services meaning if
   // a device stops advertising a service this function will still return
   // its UUID.
   virtual UUIDSet GetUUIDs() const;
 
   // Returns the last advertised Service Data. Returns an empty map if the
   // adapter is not discovering.
+  //
+  // Note: On ChromeOS and Linux, BlueZ persists all service data meaning if
+  // a device stops advertising service data for a UUID, this function will
+  // still return the cached value for that UUID.
   const ServiceDataMap& GetServiceData() const;
 
   // Returns the UUIDs of services for which the device advertises Service Data.
   // Returns an empty set if the adapter is not discovering.
   UUIDSet GetServiceDataUUIDs() const;
 
   // Returns a pointer to the Service Data for Service with |uuid|. Returns
   // nullptr if |uuid| has no Service Data.
   const std::vector<uint8_t>* GetServiceDataForUUID(
       const BluetoothUUID& uuid) const;
@@ skipping 309 matching lines @@
 
  private:
   // Returns a localized string containing the device's bluetooth address and
   // a device type for display when |name_| is empty.
   base::string16 GetAddressWithLocalizedDeviceTypeName() const;
 };
 
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_DEVICE_H_