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diff --git a/gfx/layers/ipc/LayersSurfaces.ipdlh b/gfx/layers/ipc/LayersSurfaces.ipdlh
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--- a/gfx/layers/ipc/LayersSurfaces.ipdlh
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+++ b/gfx/layers/ipc/LayersSurfaces.ipdlh
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@@ -57,10 +57,12 @@
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   uint64_t[] modifier;
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   uint32_t flags;
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   FileDescriptor[] fds;
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   uint32_t[] width;
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   uint32_t[] height;
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+  uint32_t[] widthAligned;
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+  uint32_t[] heightAligned;
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   uint32_t[] format;
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   uint32_t[] strides;
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   uint32_t[] offsets;
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   YUVColorSpace yUVColorSpace;
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   ColorRange colorRange;
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