comctl32/tests: Fix couple of metrics tests that fail on some systems

[Nikolay Sivov]

On 03/31/2015 11:05 AM, Dmitry Timoshkov wrote:
> Nikolay Sivov <nsivov at codeweavers.com> wrote:
>
>> +    /* estimate using stock font metrics */
>> +    hdc = GetDC(0);
>> +    hOldFont = SelectObject(hdc, GetStockObject (SYSTEM_FONT));
>> +    GetTextMetricsA(hdc, &tm);
>> +    SelectObject(hdc, hOldFont);
>> +    ReleaseDC(0, hdc);
>
> Probably DEFAULT_GUI_FONT should be used instead of SYSTEM, you really
> don't want to see SYSTEM_FONT on the screen, or just use its metrics.
>

Probably. I used what header code uses currently.