Migrate RenderText::stringView() to unsigneds
https://bugs.webkit.org/show_bug.cgi?id=161005

Reviewed by Alex Christensen.

No new tests because there is no behavior change.

* rendering/RenderBlockLineLayout.cpp:
(WebCore::RenderBlockFlow::computeInlineDirectionPositionsForSegment):
* rendering/RenderText.cpp:
(WebCore::RenderText::stringView):
* rendering/RenderText.h:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@204653 268f45cc-cd09-0410-ab3c-d52691b4dbfc
4 files changed