Adding scoped_nsobject for MockCBService

device/bluetooth/test/mock_bluetooth_cbservice_mac.mm

Index: device/bluetooth/test/mock_bluetooth_cbservice_mac.mm
diff --git a/device/bluetooth/test/mock_bluetooth_cbservice_mac.mm b/device/bluetooth/test/mock_bluetooth_cbservice_mac.mm
index 9c372ff8ba286c6fac2a762f32b4685fd0221b94..48337c8e95a47e31605d4d70dc1e1dd502f15133 100644
--- a/device/bluetooth/test/mock_bluetooth_cbservice_mac.mm
+++ b/device/bluetooth/test/mock_bluetooth_cbservice_mac.mm
@@ -12,7 +12,7 @@ using base::mac::ObjCCast;
 using base::scoped_nsobject;
 
 @interface MockCBService () {
-  CBUUID* _UUID;
+  scoped_nsobject<CBUUID> _UUID;
   BOOL _primary;
 }
 
@@ -20,23 +20,17 @@ using base::scoped_nsobject;
 
 @implementation MockCBService
 
-@synthesize UUID = _UUID;
 @synthesize isPrimary = _primary;
 
 - (instancetype)initWithCBUUID:(CBUUID*)uuid primary:(BOOL)isPrimary {
   self = [super init];
   if (self) {
-    _UUID = [uuid retain];
+    _UUID.reset([uuid retain]);
     _primary = isPrimary;
   }
   return self;
 }
 
-- (void)dealloc {
-  [_UUID release];
-  [super dealloc];
-}
-
 - (BOOL)isKindOfClass:(Class)aClass {
   if (aClass == [CBService class] ||
       [aClass isSubclassOfClass:[CBService class]]) {
@@ -53,6 +47,10 @@ using base::scoped_nsobject;
   return [super isKindOfClass:aClass];
 }
 
+- (CBUUID*)UUID {
+  return _UUID.get();
+}
+
 - (CBService*)service {
   return ObjCCast<CBService>(self);
 }