1. Enable dchecks in release mode:
http://code.google.com/p/chromiumembedded/issues/detail?id=790
cef_process_ui_thread.cc >> CefProcessUIThread::Init():
logging_dest = logging::LOG_TO_BOTH_FILE_AND_SYSTEM_DEBUG_LOG
logging::ENABLE_DCHECK_FOR_NON_OFFICIAL_RELEASE_BUILDS