bluetooth: Make public BluetoothDevice::GetName method.

content/shell/browser/layout_test/layout_test_bluetooth_adapter_provider.cc

 // Copyright 2015 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.
 
 #include "content/shell/browser/layout_test/layout_test_bluetooth_adapter_provider.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 814 matching lines @@
       GetBaseGATTService("Generic Access", device, kGenericAccessServiceUUID));
 
   {  // Device Name:
     std::unique_ptr<NiceMockBluetoothGattCharacteristic> device_name(
         GetBaseGATTCharacteristic(
             "Device Name", generic_access.get(), kDeviceNameUUID,
             BluetoothRemoteGattCharacteristic::PROPERTY_READ |
                 BluetoothRemoteGattCharacteristic::PROPERTY_WRITE));
 
     // Read response.
-    std::string device_name_str = device->GetDeviceName();
-    std::vector<uint8_t> device_name_value(device_name_str.begin(),
-                                           device_name_str.end());
-
+    std::vector<uint8_t> device_name_value;
+    if (base::Optional<std::string> name = device->GetName())
+      device_name_value.assign(name.value().begin(), name.value().end());
     ON_CALL(*device_name, ReadRemoteCharacteristic(_, _))
         .WillByDefault(RunCallback<0>(device_name_value));
 
     // Write response.
     ON_CALL(*device_name, WriteRemoteCharacteristic(_, _, _))
         .WillByDefault(RunCallback<1 /* success callback */>());
 
     generic_access->AddMockCharacteristic(std::move(device_name));
   }
 
@@ skipping 225 matching lines @@
   return BluetoothUUID();
 }
 
 // static
 std::string LayoutTestBluetoothAdapterProvider::makeMACAddress(uint64_t addr) {
   return BluetoothDevice::CanonicalizeAddress(
       base::StringPrintf("%012" PRIx64, addr));
 }
 
 }  // namespace content