Revert r155155 - "Change many callers of updateStyleIfNeeded() to updateStyleForNodeIfNeeded()"

This change broke svg/custom/getsvgdocument.html, see e.g.:
http://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux/builds/15051
.

TBR=esprehn@chromium.org, dcheng@chromium.org, pilgrim@chromium.org
BUG=

Review URL: https://codereview.chromium.org/21300002

git-svn-id: svn://svn.chromium.org/blink/trunk@155183 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Disable part of test from r155179, test harness is busted

TBR=hclam
BUG=266088

Review URL: https://codereview.chromium.org/21097004

git-svn-id: svn://svn.chromium.org/blink/trunk@155184 bbb929c8-8fbe-4397-9dbb-9b2b20218538