2013-11-30  Antonio Gomes  <a1.gomes@sisa.samsung.com>

        Non-CLGL Examples fails with current master.
        #350

        createContext return WEBCL_IMPLEMENTATION_FAILURE
        #351

        Reviewed by NOBODY (OOPS!).

        We do not support "use the global GL context"
        as we used to. Lets remove this altogether and
        fix our non-gl demos.

        * Modules/webcl/WebCLContextProperties.cpp:
        (WebCore::WebCLContextProperties::computeContextProperties):
        * platform/opencl/ComputeContextCL.cpp:
        (WebCore::ComputeContext::populatePropertiesForInteroperabilityWithGL):