bluetooth: mac: add connected LE devices to chooser

device/bluetooth/test/mock_bluetooth_cbperipheral_mac.mm

Index: device/bluetooth/test/mock_bluetooth_cbperipheral_mac.mm
diff --git a/device/bluetooth/test/mock_bluetooth_cbperipheral_mac.mm b/device/bluetooth/test/mock_bluetooth_cbperipheral_mac.mm
index d469ec9e621fe952f7753b42c9b4e2c8ef9aee5b..f45c5c21f2c43c0d452c2e59b3840081045f8bed 100644
--- a/device/bluetooth/test/mock_bluetooth_cbperipheral_mac.mm
+++ b/device/bluetooth/test/mock_bluetooth_cbperipheral_mac.mm
@@ -141,11 +141,12 @@ using base::scoped_nsobject;
 }
 
 - (void)didModifyServices:(NSArray*)invalidatedServices {
+  DCHECK(
+      [_delegate respondsToSelector:@selector(peripheral:didModifyServices:)]);
   // -[CBPeripheralDelegate peripheral:didModifyServices:] is only available
   // with 10.9. It is safe to call this method (even if chrome is running on
   // 10.8) since WebBluetooth is enabled only with 10.10.
-  DCHECK(
-      [_delegate respondsToSelector:@selector(peripheral:didModifyServices:)]);
+// TODO(crbug.com/653056)
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wpartial-availability"
   [_delegate peripheral:self.peripheral didModifyServices:invalidatedServices];