<rdar://problem/8880689> need a way to obtain the rendered rectangle for box elements
        https://bugs.webkit.org/show_bug.cgi?id=52823
        
        * WebProcess/InjectedBundle/API/c/WKBundleNodeHandle.cpp:
        (WKBundleNodeHandleGetRenderRect): Added new method that will return a rendered rectangle for box elements
        * WebProcess/InjectedBundle/API/c/WKBundleNodeHandlePrivate.h: Ditto.
        * WebProcess/InjectedBundle/DOM/InjectedBundleNodeHandle.cpp: Ditto.
        (WebKit::InjectedBundleNodeHandle::renderRect): Ditto.
        * WebProcess/InjectedBundle/DOM/InjectedBundleNodeHandle.h: Ditto.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@76267 268f45cc-cd09-0410-ab3c-d52691b4dbfc