[BlackBerry] WebPage: fix build due to type mismatches
https://bugs.webkit.org/show_bug.cgi?id=114148

Patch by Alberto Garcia <agarcia@igalia.com> on 2013-04-08
Reviewed by Darin Adler.

Add explicit conversions between LayoutUnit and int, and between
LayoutRect and IntRect.

* Api/WebPage.cpp:
(BlackBerry::WebKit::WebPagePrivate::rectForNode):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@147973 268f45cc-cd09-0410-ab3c-d52691b4dbfc