Implement BluetoothDeviceBlueZ::GetServiceRecords.

device/bluetooth/bluez/bluetooth_service_record_bluez.h

Index: device/bluetooth/bluez/bluetooth_service_record_bluez.h
diff --git a/device/bluetooth/bluez/bluetooth_service_record_bluez.h b/device/bluetooth/bluez/bluetooth_service_record_bluez.h
index c4a8630929ead7e65904eb1284ced55fb02ac198..b19618f816900a8ae73ee9f819f92f2eeba889b5 100644
--- a/device/bluetooth/bluez/bluetooth_service_record_bluez.h
+++ b/device/bluetooth/bluez/bluetooth_service_record_bluez.h
@@ -32,9 +32,7 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothServiceRecordBlueZ {
     UNKNOWN
   };
 
-  explicit BluetoothServiceRecordBlueZ(
-      const std::map<uint16_t, BluetoothServiceAttributeValueBlueZ>&
-          attributes);
+  BluetoothServiceRecordBlueZ();
   BluetoothServiceRecordBlueZ(const BluetoothServiceRecordBlueZ& record);
   ~BluetoothServiceRecordBlueZ();
 
@@ -44,6 +42,11 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothServiceRecordBlueZ {
   const BluetoothServiceAttributeValueBlueZ& GetAttributeValue(
       uint16_t attribute_id) const;
 
+  // Add an an entry to this service record. If a record with the given ID
+  // already exists, it is replaced.
+  void AddRecordEntry(uint16_t id,
+                      const BluetoothServiceAttributeValueBlueZ& value);
+
  private:
   std::map<uint16_t, BluetoothServiceAttributeValueBlueZ> attributes_;
 };