bluetooth: Make public BluetoothDevice::GetName method.

device/bluetooth/test/mock_bluetooth_cbperipheral_mac.mm

 // 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 "device/bluetooth/test/mock_bluetooth_cbperipheral_mac.h"
 
 #include "base/mac/foundation_util.h"
 #include "base/mac/scoped_nsobject.h"
 #include "device/bluetooth/test/bluetooth_test_mac.h"
 #include "device/bluetooth/test/mock_bluetooth_cbservice_mac.h"
@@ skipping 15 matching lines @@
 @synthesize state = _state;
 @synthesize delegate = _delegate;
 @synthesize bluetoothTestMac = _bluetoothTestMac;
 
 - (instancetype)init {
   [self doesNotRecognizeSelector:_cmd];
   return self;
 }
 
 - (instancetype)initWithUTF8StringIdentifier:(const char*)utf8Identifier {
+  return [self initWithUTF8StringIdentifier:utf8Identifier name:nil];
+}
+
+- (instancetype)initWithUTF8StringIdentifier:(const char*)utf8Identifier
+                                        name:(NSString*)name {
   scoped_nsobject<NSUUID> identifier(
       [[NSUUID alloc] initWithUUIDString:@(utf8Identifier)]);
-  return [self initWithIdentifier:identifier name:nil];
-}
-
-- (instancetype)initWithIdentifier:(NSUUID*)identifier {
-  return [self initWithIdentifier:identifier name:nil];
+  return [self initWithIdentifier:identifier name:name];
 }
 
 - (instancetype)initWithIdentifier:(NSUUID*)identifier name:(NSString*)name {
   self = [super init];
   if (self) {
     _identifier.reset([identifier retain]);
     if (name) {
       _name.reset([name retain]);
-    } else {
-      _name.reset(
-          [@(device::BluetoothTestBase::kTestDeviceName.c_str()) retain]);
     }
     _state = CBPeripheralStateDisconnected;
   }
   return self;
 }
 
 - (BOOL)isKindOfClass:(Class)aClass {
   if (aClass == [CBPeripheral class] ||
       [aClass isSubclassOfClass:[CBPeripheral class]]) {
     return YES;
@@ skipping 105 matching lines @@
 - (CBPeripheral*)peripheral {
   return ObjCCast<CBPeripheral>(self);
 }
 
 - (void)setNotifyValue:(BOOL)notification
      forCharacteristic:(CBCharacteristic*)characteristic {
   _bluetoothTestMac->OnFakeBluetoothGattSetCharacteristicNotification();
 }
 
 @end