Merge "libEGL: silence warnings for client extension querying"

{

    clearError();

    // Generate an error quietly when client extensions (as defined by

    // EGL_EXT_client_extensions) are queried.  We do not want to rely on

    // validate_display to generate the error as validate_display would log

    // the error, which can be misleading.

    //

    // If we want to support EGL_EXT_client_extensions later, we can return

    // the client extension string here instead.

    if (dpy == EGL_NO_DISPLAY && name == EGL_EXTENSIONS)

        return setErrorQuiet(EGL_BAD_DISPLAY, nullptr);

    const egl_display_ptr dp = validate_display(dpy);

    if (!dp) return (const char *) NULL;