2011-02-03 Anton Muhin <antonm@chromium.org>

2011-02-03  Anton Muhin  <antonm@chromium.org>

        Reviewed by Adam Barth.

        [v8] frame several more JS code invocations into v8::TryCatch
        https://bugs.webkit.org/show_bug.cgi?id=53594

        This patch is preemptive and adjusts v8 bindings code to forthcoming small change
        in v8::ThrowException---currently sometimes exceptions thrown by this method
        do not reach surrounding v8::TryCatch handler (see
        http://code.google.com/p/v8/issues/detail?id=1072 and
        http://codereview.chromium.org/6397011/).  Therefore the goal of this patch
        is to make forthcoming v8 roll as smooth as possible (alas, we'll still need
        one rebaseline as of now.)

        * bindings/v8/V8Proxy.cpp:
        (WebCore::V8Proxy::runScript): Do not rely on empty handle as a signal of exception, wrap into v8::TryCatch instead
        * bindings/v8/V8WindowErrorHandler.cpp:
        (WebCore::V8WindowErrorHandler::callListenerFunction): Ditto

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@77613 268f45cc-cd09-0410-ab3c-d52691b4dbfc