GN: Revert to default compiler optimizations for Win Release.

GN: Revert to default compiler optimizations for Win Release.

Revert back to the GN/Chromium default optimization levels what
was changed in https://codereview.webrtc.org/2307283002/ and
https://codereview.webrtc.org/2305403002/ due to a performance
regression. Those changes caused a size regression in Chromium,
which is why this is changed back.

BUG=chromium:641966
NOTRY=True
TBR=ehmaldonado@webrtc.org, henrik.lundin@webrtc.org

Committed: https://crrev.com/11d57668190edb1f4b8208500da3ab33f638dee3
Cr-Commit-Position: refs/heads/master@{#14178}

[kjellander_webrtc, 2016-09-12 06:05:48]

kjellander@webrtc.org changed reviewers:
+ thakis@chromium.org

[kjellander_webrtc, 2016-09-12 06:05:48]

henrik.lundin: if the NetEq regression is important, we should investigate
altering optimizations for the necessary NetEq targets instead of applying the
configuration like it was done here...

[kjellander_webrtc, 2016-09-12 06:20:55]

The CQ bit was checked by kjellander@webrtc.org

[commit-bot: I haz the power, 2016-09-12 06:21:05]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.webrtc.org/...

[commit-bot: I haz the power, 2016-09-12 06:29:39]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-12 06:29:57]

Description was changed from

==========
GN: Revert to default compiler optimizations for Win Release.

Revert back to the GN/Chromium default optimization levels what
was changed in https://codereview.webrtc.org/2307283002/ and
https://codereview.webrtc.org/2305403002/ due to a performance
regression. Those changes caused a size regression in Chromium,
which is why this is changed back.

BUG=chromium:641966
NOTRY=True
TBR=ehmaldonado@webrtc.org, henrik.lundin@webrtc.org
==========

to

==========
GN: Revert to default compiler optimizations for Win Release.

Revert back to the GN/Chromium default optimization levels what
was changed in https://codereview.webrtc.org/2307283002/ and
https://codereview.webrtc.org/2305403002/ due to a performance
regression. Those changes caused a size regression in Chromium,
which is why this is changed back.

BUG=chromium:641966
NOTRY=True
TBR=ehmaldonado@webrtc.org, henrik.lundin@webrtc.org

Committed: https://crrev.com/11d57668190edb1f4b8208500da3ab33f638dee3
Cr-Commit-Position: refs/heads/master@{#14178}
==========

[commit-bot: I haz the power, 2016-09-12 06:29:58]

Patchset 1 (id:??) landed as
https://crrev.com/11d57668190edb1f4b8208500da3ab33f638dee3
Cr-Commit-Position: refs/heads/master@{#14178}

[hlundin-webrtc, 2016-09-12 08:13:39]

lgtm

[Nico, 2016-09-12 14:24:07]

lgtm, thanks.