Revert FCM text-based-repaint change and rebaselines

It appears that repaints are flakily sometimes going into FrameView and
sometimes into GraphicsLayer depending on when they occur.
FrameView-based repaint tracking probably needs to be removed.

Remove the temporary flakiness suppression and revert the
text-based-repaint change entirely until this can be sorted out
properly.

This reverts:
    172649	5597bb17499e3b3d6628032a15e1c897c9f1ca7b Temporarily mark all text-based-repaint tests as text flaky
    172625	9fa1cc513240e9477e30e870c043479eb92d9d66 Auto-rebaseline for r172545
    172624	04c9faf4a62cb5749db3de97cc45eba68080c85c Auto-rebaseline for r172545
    172616	ec68585889368a4f0f88c739f939e7c9607c2be6 Auto-rebaseline for r172545
    172613	6ee9bba42d172ebb16a071941b2738e91f576b76 Auto-rebaseline for r172545
    172609	ccb8d327f562d209a86ea536301e3beaa1f38386 Auto-rebaseline for r172545
    172606	d70a1d141737f26301e392fea12491b51eca243b Auto-rebaseline for r172545
    172604	730bd50c83a349d2e1b3f65218f828d83ae83aa7 Auto-rebaseline for r172545
    172600	a85ebb97e1fae906b82ce06ec8ba501f0c63378e Auto-rebaseline for r172545
    172597	b0e33214b8247d9de9f7f9e4fe47d5be0c8e43c3 Auto-rebaseline for r172545
    172593	65a42d966eaef8621423ad344375f024c8213ea3 Auto-rebaseline for r172545
    172590	ffd4607321d4055f20a43738ba8ca820cf50cafd Auto-rebaseline for r172545
    172588	d0397105757cf2096d24f934dd2b0fd90b3bedd6 Auto-rebaseline for r172545
    172586	23ab2a346afdaad28047e1303c67cced403f4f0a Auto-rebaseline for r172545
    172582	4164de6ae70cced98d24500db27cc1850ca0d6ed Convert repaint-rtl-column to text-based-repaint
    172576	098d7b6339137f7cf6f7b0ebbcacfca9ffb79be5 Auto-rebaseline for r172545
    172545	076c4738814da32a05c2f7b2926e684adc21280c FCMify text-based-repaint layout tests

TBR=abarth@chromium.org
NOTRY=true
BUG=367201

Review URL: https://codereview.chromium.org/250803011

git-svn-id: svn://svn.chromium.org/blink/trunk@172675 bbb929c8-8fbe-4397-9dbb-9b2b20218538