scale xmin and xmax for FontMetrics

scale xmin and xmax for FontMetrics

BUG=skia:

Committed: https://skia.googlesource.com/skia/+/79c276e4fd93d9c9fd57a45bc6929c48e4415b2f

[reed1, 2014-10-29 20:34:18]

reed@google.com changed reviewers:
+ bungeman@google.com, mtklein@google.com, reed@google.com

[reed1, 2014-10-29 20:34:21]

The CQ bit was checked by reed@google.com

[commit-bot: I haz the power, 2014-10-29 20:34:36]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/685153004/1

[commit-bot: I haz the power, 2014-10-29 20:34:37]

Note for Reviewers:
The CQ is waiting for an approval.
If you believe that the CL is not ready yet, or if you would like to L-G-T-M
with comments then please uncheck the CQ checkbox.

Waiting for LGTM from valid reviewer(s) till 2014-10-30 02:34 UTC

[mtklein, 2014-10-29 20:34:41]

lgtm

[commit-bot: I haz the power, 2014-10-29 20:43:54]

Committed patchset #1 (id:1) as 79c276e4fd93d9c9fd57a45bc6929c48e4415b2f

[robertphillips, 2014-10-30 16:59:01]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/691033002/ by robertphillips@google.com.

The reason for reverting is: Experimental revert to see if this is blocking the
DEPS roll.