Only select scalable fonts....

Only select scalable fonts. Fixed-size fonts don't work with FT_Set_Char_Size in SkFontHost_FreeType.cpp.

BUG=13007
TEST=On Linux, visit url with { font-family: fixed; } on a computer with pcf fonts.

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=18832

[Lei Zhang, 2009-06-19 06:34:01]

This fixes bug 13007 for me, but we should also commit
http://codereview.appspot.com/79052

[Evan Martin, 2009-06-19 14:42:39]

Could you make both the commit description and the comment in the code describe
why we want to do this?

I wonder if there's a way we can still make use of non-scalable fonts if they're
the right size.

[Lei Zhang, 2009-06-19 18:02:04]

On 2009/06/19 14:42:39, Evan Martin wrote:
> Could you make both the commit description and the comment in the code
describe
> why we want to do this?

Done.

> I wonder if there's a way we can still make use of non-scalable fonts if
they're
> the right size.

Then the match function would need to know what size is being requested right?

[Evan Martin, 2009-06-19 18:05:19]

LGTM

(It might be more descriptive to point out that why they don't work with
FT_Set_Char_Size...  and to mention the test passes if you don't crash.)