Kill RenderObject::invalidatePaintForWholeRenderer

We have fixed invalidation issues of RenderInline and RenderText
and killed all callers of invalidatePaintForWholeRenderer except
RenderObjectChildList::removeChildNode(), now
- remove RenderObject::invalidatePaintForWholeRenderer;
- add RenderObjectChildList::invalidatePaintOnRemoval;
- only invalidate the previous rect;
- rename InvalidationReason InvalidationPaint to
  InvalidationRendererRemoval.

Some tests need rebaseline because:
- we only invalidate the previous rect on removal;
- we avoid unnecessary incremental invalidation of ancestors because of
  previous unnecessary "AndFullPaintInvalidation" flag of the oldChild.

BUG=397555

Review URL: https://codereview.chromium.org/475123004

git-svn-id: svn://svn.chromium.org/blink/trunk@182339 bbb929c8-8fbe-4397-9dbb-9b2b20218538