call portable font cleanup only once at app end

call portable font cleanup only once at app end

R=mtklein@google.com

Committed: https://skia.googlesource.com/skia/+/f53ce808e9ff942c0bbc3c968e3d9393461c20db

[caryclark, 2015-06-15 13:26:59]

The CQ bit was checked by caryclark@google.com

[commit-bot: I haz the power, 2015-06-15 13:27:08]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1180593005/1

[commit-bot: I haz the power, 2015-06-15 13:27:08]

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 2015-06-15 19:27 UTC

[caryclark, 2015-06-15 13:40:29]

caryclark@google.com changed reviewers:
+ robertphillips@google.com

[robertphillips, 2015-06-15 13:46:15]

lgtm

[commit-bot: I haz the power, 2015-06-15 13:48:34]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/f53ce808e9ff942c0bbc3c968e3d9393461c20db

[mtklein, 2015-06-15 13:57:36]

lgtm

https://codereview.chromium.org/1180593005/diff/1/tools/sk_tool_utils_font.cpp
File tools/sk_tool_utils_font.cpp (left):

https://codereview.chromium.org/1180593005/diff/1/tools/sk_tool_utils_font.cp...
tools/sk_tool_utils_font.cpp:72: atexit(release_portable_typefaces);
Ah, we called this for each portable typeface, but release_portable_typefaces
cleans up all of them!