Add window.internals.nonFastScrollableRects for testing scrollable areas in fast/slow paths
https://bugs.webkit.org/show_bug.cgi?id=105546

Reviewed by James Robinson.

.:

Export the new symbol.

* Source/autotools/symbols.filter:

Source/WebCore:

No new tests. Added test API for new tests of other bugs.

* WebCore.exp.in:
* page/Page.cpp:
(WebCore::Page::nonFastScrollableRects):
(WebCore):
* page/Page.h:
(WebCore):
(Page):
* page/scrolling/ScrollingCoordinator.cpp:
(WebCore::ScrollingCoordinator::computeNonFastScrollableRegion): Change to public to allow Page::nonFastScrollableRects to access.
* page/scrolling/ScrollingCoordinator.h:
(ScrollingCoordinator):
* testing/Internals.cpp:
(WebCore::Internals::nonFastScrollableRects):
(WebCore):
* testing/Internals.h:
* testing/Internals.idl:

Source/WebKit2:

Export the new symbol.

* win/WebKit2.def.in:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@138991 268f45cc-cd09-0410-ab3c-d52691b4dbfc