https://bugs.webkit.org/show_bug.cgi?id=93108

Patch by Iain Merrick <husky@chromium.org> on 2012-08-14
Reviewed by Adam Barth.

Adds a new test WebFrameTest.SelectRange. This tests WebFrameImpl::selectRange,
and also serves to test WebFrameImpl::visiblePositionForWindowPoint as it is
used by selectRange.

The test uses sample files that contain selected text on load. The test uses
WebViewImpl::selectionBounds to get the coordinates, deselects all, then
calls WebFrameImpl::selectRange to attempt to reselect the same text.

Four cases are tested:
- the basic case
- the case where the selected text is offscreen due to a scroll
- the case where the selected text is in an iframe
- the case where the selected text is in an editable element

* tests/WebFrameTest.cpp:
* tests/data/select_range_basic.html: Added.
* tests/data/select_range_editable.html: Added.
* tests/data/select_range_iframe.html: Added.
* tests/data/select_range_scroll.html: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@125581 268f45cc-cd09-0410-ab3c-d52691b4dbfc