Mimic Chrome better in our GYPs.

Mimic Chrome better in our GYPs.

To match Chrome, make sure we've disabled thread-safe statics, RTTI, and exceptions.  Linux needed -fno-threadsafe-statics, Mac needed all three.

Nothing important triggered this CL.  I just got confused when I saw exception handling (calls to delete, stack unwinding) in some generated code on my laptop.

BUG=skia:

Committed: https://skia.googlesource.com/skia/+/61a81e39477f881726b0a0565d50018c69155f00

[mtklein_C, 2015-09-09 17:25:01]

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

[mtklein_C, 2015-09-09 17:25:01]

Sort of spraying for a reviewer: the lgtm of any one reviewer who understands
all the words in this CL is good enough for me.

[herb_g, 2015-09-09 17:35:19]

lgtm

[mtklein, 2015-09-09 17:35:57]

The CQ bit was checked by mtklein@google.com

[commit-bot: I haz the power, 2015-09-09 17:36:05]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1323533003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1323533003/1

[commit-bot: I haz the power, 2015-09-09 17:37:45]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-09-09 17:37:45]

Try jobs failed on following builders:
  Build-Ubuntu-GCC-Arm64-Debug-Android-Trybot on client.skia.compile
(JOB_FAILED,
http://build.chromium.org/p/client.skia.compile/builders/Build-Ubuntu-GCC-Arm...)

[mtklein, 2015-09-09 17:40:47]

The CQ bit was checked by mtklein@google.com

[mtklein, 2015-09-09 17:40:48]

The patchset sent to the CQ was uploaded after l-g-t-m from herb@google.com
Link to the patchset: https://codereview.chromium.org/1323533003/#ps20001
(title: "move to _cc")

[commit-bot: I haz the power, 2015-09-09 17:40:54]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1323533003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1323533003/20001

[commit-bot: I haz the power, 2015-09-09 17:46:22]

Committed patchset #2 (id:20001) as
https://skia.googlesource.com/skia/+/61a81e39477f881726b0a0565d50018c69155f00