Move vertex buffer setup out of drawPackedGlyph().

Move vertex buffer setup out of drawPackedGlyph().

This gets a very welcome ~10% speedup on my Mac.

Committed: https://skia.googlesource.com/skia/+/1d38619389cc1100bd516b9acbf17b7bd42d33ce

Committed: https://skia.googlesource.com/skia/+/f17bc6cf7ae4b6483ff3a5f52b0672e4243011e3

[jvanverth1, 2014-07-24 18:07:37]

(I'll fix the overlong lines in GrDistanceFieldTextContext when I add vertex
colors.)

[bsalomon, 2014-07-24 18:13:36]

lgtm. Are there any remaining callers for the geometry hints stuff? If not,
let's whack it.

[jvanverth1, 2014-07-24 18:40:48]

On 2014/07/24 18:13:36, bsalomon wrote:
> lgtm. Are there any remaining callers for the geometry hints stuff? If not,
> let's whack it.

GrInOrderDrawBuffer::willReserveVertexAndIndexSpace() uses it to decide whether
to flush or not.

[jvanverth1, 2014-07-25 18:18:55]

The CQ bit was checked by jvanverth@google.com

[commit-bot: I haz the power, 2014-07-25 18:20:02]

CQ is trying da patch. Follow status at
 https://skia-tree-status.appspot.com/cq/jvanverth@google.com/414573002/20001

[commit-bot: I haz the power, 2014-07-25 18:31:19]

Change committed as 1d38619389cc1100bd516b9acbf17b7bd42d33ce

[jvanverth1, 2014-07-25 18:51:58]

A revert of this CL has been created in
https://codereview.chromium.org/419943002/ by jvanverth@google.com.

The reason for reverting is: Breaking Ubuntu and Windows bots..

[jvanverth1, 2014-07-25 23:34:07]

The CQ bit was checked by jvanverth@google.com

[commit-bot: I haz the power, 2014-07-25 23:34:51]

CQ is trying da patch. Follow status at
 https://skia-tree-status.appspot.com/cq/jvanverth@google.com/414573002/40001

[commit-bot: I haz the power, 2014-07-25 23:46:58]

Change committed as f17bc6cf7ae4b6483ff3a5f52b0672e4243011e3