Changes in 20210704213917

Built from 2db6a4941022975cfcdcb8001bdfce93bfd85467

..index..
Bug 1712588 R[Core:Widget: Gtk]Implement DMABufSurface::GetAsSourceSurface.
Bug 1706973 R[Firefox:Theme]The tab selection border for primary password 'Learn More' link is too big
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Changes to 2 bugs - 2 fixed.