2014-01-14 Antonio Gomes <a1.gomes@sisa.samsung.com>

        Implement WebCLCommandQueue::enqueueWaitForEvents
        Issue #409

        Reviewed by Igor.

        Vo a la'

        * Modules/webcl/WebCLCommandQueue.cpp:
        (WebCore::WebCLCommandQueue::ccEventListFromWebCLEventList):
        (WebCore::WebCLCommandQueue::enqueueWaitForEvents):
        * Modules/webcl/WebCLCommandQueue.h:
        * Modules/webcl/WebCLCommandQueue.idl: