WebCore: Document.elementFromPoint() and Document.caretRangeFromPoint() erroneously returning null at points visible only after scrolling.
https://bugs.webkit.org/show_bug.cgi?id=29245

Patch by Andrew Richards <randrew@gmail.com> on 2009-09-14
Reviewed by Sam Weinig.

Use visibleContentRect() instead of boundsRect() when checking hit point bounds on viewport.

* dom/Document.cpp:
(WebCore::Document::elementFromPoint):
(WebCore::Document::caretRangeFromPoint):

LayoutTests: Document.elementFromPoint() and Document.caretRangeFromPoint() returning null at points visible only after scrolling.
https://bugs.webkit.org/show_bug.cgi?id=29245

Patch by Andrew Richards <randrew@gmail.com> on 2009-09-14
Reviewed by Sam Weinig.

Extend tests to include hits in areas that are not in the initial containing block of the page.

* fast/dom/Document/CaretRangeFromPoint/hittest-relative-to-viewport-expected.txt:
* fast/dom/Document/CaretRangeFromPoint/hittest-relative-to-viewport.html:
* fast/dom/elementFromPoint-relative-to-viewport-expected.txt:
* fast/dom/elementFromPoint-relative-to-viewport.html:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@48398 268f45cc-cd09-0410-ab3c-d52691b4dbfc