Baseline alignment with inline <table> is broken when margin-top is applied

The beasline of an inline block contains the margin top. That is
calculated at RenderBlock::baselinePosition(). However, the baseline of
an inline table doesn't contain the margin top.

The baseline of an inline table should contain margin top.

BUG=329431

Review URL: https://codereview.chromium.org/117953002

git-svn-id: svn://svn.chromium.org/blink/trunk@165514 bbb929c8-8fbe-4397-9dbb-9b2b20218538