2014-03-25  Shilpa Shri  <shilpa.shri@samsung.com>

        WebCLDevice :: getInfo (DEVICE_VENDOR_ID) must return CLuint

        Fixed #497

        Reviewed by Antonio and Sharath.

        Conformance tests :
        conformance/bindingTesting/fetchInfo/cl_device_getinfo.html

        * Modules/webcl/WebCLDevice.cpp:
        (WebCore::WebCLDevice::getInfo):