clang: -Wswitch warning tweaks.

clang: -Wswitch warning tweaks.

yasm: Switch/enum warnings moved from -Wswitch-enum to -Wswitch in clang, rename flag.

Roll ffmpeg 120865:122092
Only change: -Wno-switch-enum -> -Wno-switch

Roll ICU 121777:122103
Only change: Add -Wno-switch to ICU (two CLs).

Roll NSS 117974:122093
r119755: Allow projects dependent on NSS to specify whether to build the complete NSS.
r122093: -Wno-switch-enum -> -Wno-switch

BUG=102390
TEST=fewer warnings when building
TBR=evan

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=122106

[Nico, 2012-02-15 16:51:29]

(rsleevi: y u no roll deps after change?)

[commit-bot: I haz the power, 2012-02-15 16:53:09]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/thakis@chromium.org/9411001/1

[commit-bot: I haz the power, 2012-02-15 16:53:12]

Can't apply patch for file DEPS.
While running patch -p1 --forward --force;
patching file DEPS
Hunk #2 FAILED at 50.
Hunk #3 succeeded at 87 (offset 1 line).
1 out of 3 hunks FAILED -- saving rejects to file DEPS.rej

[commit-bot: I haz the power, 2012-02-15 16:58:53]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/thakis@chromium.org/9411001/5001