2013-08-26  Sharath Kamath  <s.kamath@samsung.com>

        WebCL::createContext - deviceType property is not used.
        Issue #283

        Reviewed by NOBODY (OOPS!).

        As per specification, when user sends a Type in property param of createContext()
        the device used to create context must be of this type.
        Also the platform selected for creating opencl context must have devices of
        the type sent.

        if either them is not satisfied need to send a error to the user.

        No new tests (OOPS!).

        * Modules/webcl/WebCL.h:
        (WebCore::WebCL::createContextBase):