Reviewed by Darin.

        Test for http://bugs.webkit.org/show_bug.cgi?id=13796
        Crash in [NSInputContext currentInputContext] when you click on this map

        * fast/frames/frame-display-none-focus-expected.txt: Added.
        * fast/frames/frame-display-none-focus.html: Added.
        * fast/frames/resources/iframe-focus.html: Added.

WebCore:

        Reviewed by Darin.

        Fix for http://bugs.webkit.org/show_bug.cgi?id=13796
        Crash in [NSInputContext currentInputContext] when you click on this map

        This is another case of <rdar://problem/5171145> Safari crashed closing tab in NSInputContext updateInputContexts

        Test: fast/frames/frame-display-none-focus.html

        * WebCore.xcodeproj/project.pbxproj: Added ChromeMac.mm
        * page/Chrome.h:
        * page/mac/ChromeMac.mm: Added.
        (WebCore::Chrome::focusNSView): Moved code from Widget::setFocus so it can be used whenever we need to make a view the first responder.
        * page/mac/EventHandlerMac.mm: (WebCore::EventHandler::focusDocumentView): Calls focusNSView.
        * platform/mac/WidgetMac.mm: (WebCore::Widget::setFocus): Calls focusNSView.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@21649 268f45cc-cd09-0410-ab3c-d52691b4dbfc