fix stroking large drawPosText

fix stroking large drawPosText

BUG=skia:

Committed: http://code.google.com/p/skia/source/detail?r=14865

[reed1, 2014-05-22 17:58:46]

This is an alternate proposal to https://codereview.chromium.org/284763010/
along with a tweak to the GM to exercise stroked text. What do you think?

[bungeman-skia, 2014-05-22 18:57:15]

It appears that the main difference between this proposal and the other is that
this one caches only the 'platonic' path and draws with paint, whereas the other
caches the 'fillable' path and removes things from the paint. Other than
arguments about which is better for memory/time, this lgtm.

Note that this leaves out the rasterizer, but we're planning on killing that
anyway I think.

[yunchao, 2014-05-23 03:25:17]

On 2014/05/22 17:58:46, reed1 wrote:
> This is an alternate proposal to https://codereview.chromium.org/284763010/
> along with a tweak to the GM to exercise stroked text. What do you think?

lgtm. I also tested my proposed GM case at
https://codereview.chromium.org/290443004/, who add path effect to big text.
This CL can fix the rendering error showed by that new GM case too.

[reed1, 2014-05-23 12:26:32]

The CQ bit was checked by reed@google.com

[commit-bot: I haz the power, 2014-05-23 12:26:39]

CQ is trying da patch. Follow status at
 https://skia-tree-status.appspot.com/cq/reed@google.com/288983004/80001

[commit-bot: I haz the power, 2014-05-23 12:32:24]

Change committed as 14865