| Index: gpu/ipc/client/BUILD.gn | 
| diff --git a/gpu/ipc/client/BUILD.gn b/gpu/ipc/client/BUILD.gn | 
| index 96c2808b04a625a859d0c0ab2334ac8f3a3b0067..de9ce4ec09d59fb1cfb993520b14455e1483f8f7 100644 | 
| --- a/gpu/ipc/client/BUILD.gn | 
| +++ b/gpu/ipc/client/BUILD.gn | 
| @@ -41,6 +41,12 @@ source_set("ipc_client_sources") { | 
| "gpu_memory_buffer_impl_native_pixmap.h", | 
| ] | 
| } | 
| +  if (is_win) { | 
| +    sources += [ | 
| +      "gpu_memory_buffer_impl_direct_composition.cc", | 
| +      "gpu_memory_buffer_impl_direct_composition.h", | 
| +    ] | 
| +  } | 
| configs += [ | 
| "//build/config/compiler:no_size_t_to_int_warning", | 
| "//gpu:gpu_implementation", | 
|  |