Bug 844654 - Part 3: Remove now empty Makefile.in files; rs=khuey

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extra : rebase_source : 8de9c7f68a953e574dda22f8c14c2b2ca60444f9
Bug 852413 - Wait even more for painting to finish before forcing a paint.  r=mattwoodrow

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extra : rebase_source : 8a0513da9cea80677b1d4739fad429044a24255d
Bug 851755 - Make nsImageBoxFrame block its document's onload when its image blocks onload. r=tn

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extra : rebase_source : e68858154d321796c9490c5c83b96848de733e46