| Index: components/mus/surfaces/top_level_display_client.cc
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| diff --git a/components/mus/surfaces/top_level_display_client.cc b/components/mus/surfaces/top_level_display_client.cc
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| index aba70d0d8650e38ac73c2587efe613fd896c3788..e84cf74980d2c25de0b12b93699e7ec1b282fe89 100644
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| --- a/components/mus/surfaces/top_level_display_client.cc
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| +++ b/components/mus/surfaces/top_level_display_client.cc
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| @@ -100,4 +100,11 @@ void TopLevelDisplayClient::ReturnResources(
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|    // TODO(fsamuel): Implement this.
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|  }
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|  
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| +void TopLevelDisplayClient::SetBeginFrameSource(
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| +    cc::SurfaceId surface_id,
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| +    cc::BeginFrameSource* begin_frame_source) {
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| +  // TODO(tansell): Implement this.
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| +  NOTIMPLEMENTED();
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| +}
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| +
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|  }  // namespace mus
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| 
 |