28     using testing::Invoke;  in MockCallback()
31         .WillByDefault(Invoke(this, &MockCallback::OnElementBeginConcrete));  in MockCallback()
33         .WillByDefault(Invoke(this, &MockCallback::OnUnknownElementConcrete));  in MockCallback()
35         .WillByDefault(Invoke(this, &MockCallback::OnEbmlConcrete));  in MockCallback()
37         .WillByDefault(Invoke(this, &MockCallback::OnVoidConcrete));  in MockCallback()
39         .WillByDefault(Invoke(this, &MockCallback::OnSegmentBeginConcrete));  in MockCallback()
41         .WillByDefault(Invoke(this, &MockCallback::OnSeekConcrete));  in MockCallback()
43         .WillByDefault(Invoke(this, &MockCallback::OnInfoConcrete));  in MockCallback()
45         .WillByDefault(Invoke(this, &MockCallback::OnClusterBeginConcrete));  in MockCallback()
47         .WillByDefault(Invoke(this, &MockCallback::OnSimpleBlockBeginConcrete));  in MockCallback()
49         .WillByDefault(Invoke(this, &MockCallback::OnSimpleBlockEndConcrete));  in MockCallback()
51         .WillByDefault(Invoke(this, &MockCallback::OnBlockGroupBeginConcrete));  in MockCallback()
53         .WillByDefault(Invoke(this, &MockCallback::OnBlockBeginConcrete));  in MockCallback()
55         .WillByDefault(Invoke(this, &MockCallback::OnBlockEndConcrete));  in MockCallback()
57         .WillByDefault(Invoke(this, &MockCallback::OnBlockGroupEndConcrete));  in MockCallback()
59         .WillByDefault(Invoke(this, &MockCallback::OnFrameConcrete));  in MockCallback()
61         .WillByDefault(Invoke(this, &MockCallback::OnClusterEndConcrete));  in MockCallback()
63         .WillByDefault(Invoke(this, &MockCallback::OnTrackEntryConcrete));  in MockCallback()
65         .WillByDefault(Invoke(this, &MockCallback::OnCuePointConcrete));  in MockCallback()
67         .WillByDefault(Invoke(this, &MockCallback::OnEditionEntryConcrete));  in MockCallback()
69         .WillByDefault(Invoke(this, &MockCallback::OnTagConcrete));  in MockCallback()
71         .WillByDefault(Invoke(this, &MockCallback::OnSegmentEndConcrete));  in MockCallback()