Unreviewed, rolling out r95509.

Unreviewed, rolling out r95509.
http://trac.webkit.org/changeset/95509
https://bugs.webkit.org/show_bug.cgi?id=68446

crashes chromium fast/repaint/japanese-rl-selection-repaint-
in-regions.html on Win and Linux (Requested by dslomov on
#webkit).

Patch by Sheriff Bot <webkit.review.bot@gmail.com> on 2011-09-20

Source/WebCore:

* rendering/RenderBlock.cpp:
(WebCore::positionForPointRespectingEditingBoundaries):

LayoutTests:

* editing/selection/click-on-body-margin-expected.txt: Removed.
* editing/selection/click-on-body-margin.html: Removed.
* editing/selection/click-on-head-margin-expected.txt: Removed.
* editing/selection/click-on-head-margin.html: Removed.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@95550 268f45cc-cd09-0410-ab3c-d52691b4dbfc