When we enable LayoutNGPaintFragments, parts of text is slightly offset to the left.

e.g., for "Letter spacing test" and "spacing test" is slightly offset to the left.

As I analyzed these results, this is because Times has kerning pairs for a space character and "s" (and some other characters) but the current layout engine does not use it. We have HasSpaceInLigaturesOrKerning() but it looks like it doesn't work, I'm not sure if this is intended perf optimization or unintentional.

Sometimes "This WebKit" and only "ebKit" is shifted. In this case, the position of "WebKit" is shifted internally, but due to font rendering, "W" is not affected.

I'm filing this bug to rebaseline images for LayoutNGPaintFragments.