Bug 123952 – Fix inline-block baseline with overflow: <not visible>

• Component: Layout and Rendering
• Status: NEW

[Ryosuke Niwa]

Consider merging https://src.chromium.org/viewvc/blink?revision=155341&view=revision

Fix inline-block baseline with overflow: <not visible>

They should align to the bottom of the margin box.
   The baseline of an 'inline-block' is the baseline of its last line
   box in the normal flow, unless it has either no in-flow line boxes or
   if its 'overflow' property has a computed value other than 'visible',
   in which case the baseline is the bottom margin edge.

and

https://chromium.googlesource.com/chromium/blink/+/581c77f25abb3fdfbbbb4e55fdaa5218245c3c32

r155341 (https://codereview.chromium.org/21414002) made us follow the
CSS spec for the alignment of overflow: hidden; in combination with
display: inline-block;. Unfortunately, that had the side-effect of
changing the baselines for <input> elements, because we internally
implement them as inline-blocks. This CL overrides the baseline
computation so that they align the same way with or without overflow.

(NOTE: Any websites that were broken by this can fix it by just removing
overflow: hidden, because it has no effect on <input> elements)

[Han]

This appears to be a duplicate of https://bugs.webkit.org/show_bug.cgi?id=36084