Reviewed by Darin.

    Reviewed by Darin.

        Bug 10200: [Drosera] Deadlock between Drosera and Safari while loading page
        http://bugzilla.opendarwin.org/show_bug.cgi?id=10200

        Prevent reentrancy in our debugger callbacks. This was causing a deadlock in Drosera because
        suspendProcessIfPaused was being called during a DO call into Safari.

        Preventing reentrancy also prevents scripts that Drosera injects and evaluates from showing
        up in rare cases (such as a iframe loading about:blank). I thought this would prevent cases
        where you call a function from the console and expect it to break on a breakpoint in them, but
        this appears to never have worked even without this change. When that is figured out we can
        reconsider a better solution to reentrancy. I have filed that as bug 10214.

        I also removed the NSRunLoop runMode:beforeDate: calls since DO handles this for us since
        we don't use "onway void" as the return type for the callbacks. Note: using onway void for
        the listener callbacks causes bad synchronization issues and obscure crashes.

        * DefaultDelegates/WebScriptDebugServer.m:
        (-[WebScriptDebugServer webView:didLoadMainResourceForDataSource:]):
        (-[WebScriptDebugServer webView:didParseSource:baseLineNumber:fromURL:sourceId:forWebFrame:]):
        (-[WebScriptDebugServer webView:failedToParseSource:baseLineNumber:fromURL:withError:forWebFrame:]):
        (-[WebScriptDebugServer webView:didEnterCallFrame:sourceId:line:forWebFrame:]):
        (-[WebScriptDebugServer webView:willExecuteStatement:sourceId:line:forWebFrame:]):
        (-[WebScriptDebugServer webView:willLeaveCallFrame:sourceId:line:forWebFrame:]):
        (-[WebScriptDebugServer webView:exceptionWasRaised:sourceId:line:forWebFrame:]):
        * DefaultDelegates/WebScriptDebugServerPrivate.h:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@15761 268f45cc-cd09-0410-ab3c-d52691b4dbfc