| Index: extensions/browser/api/cast_channel/cast_test_util.h | 
| diff --git a/extensions/browser/api/cast_channel/cast_test_util.h b/extensions/browser/api/cast_channel/cast_test_util.h | 
| index f70af01ff3e21eb66273a160d6304871e9bfe9b9..c01cf64b045c6db17609e8661dab365e2ebdaf8f 100644 | 
| --- a/extensions/browser/api/cast_channel/cast_test_util.h | 
| +++ b/extensions/browser/api/cast_channel/cast_test_util.h | 
| @@ -92,9 +92,12 @@ class MockCastSocket : public CastSocket { | 
|  | 
| MockCastTransport* mock_transport() const { return mock_transport_.get(); } | 
|  | 
| +  const std::string& owner_extension_id() const override; | 
| + | 
| private: | 
| std::unique_ptr<MockCastTransport> mock_transport_; | 
| std::unique_ptr<CastTransport::Delegate> delegate_; | 
| +  std::string owner_extension_id_; | 
|  | 
| DISALLOW_COPY_AND_ASSIGN(MockCastSocket); | 
| }; | 
|  |