Revert of build: Enable optimize_for_size unconditionally.

Revert of build: Enable optimize_for_size unconditionally. (patchset #1 id:1 of https://codereview.chromium.org/2864383003/ )

Reason for revert:
Causes failures on a MSAN bot.
https://uberchromegw.corp.google.com/i/chromium.memory/builders/Linux%20ChromiumOS%20MSan%20Tests/builds/440


Original issue's description:
> build: Enable optimize_for_size unconditionally.
> 
> This change causes us to favor size over speed on Linux and Mac,
> which aligns the build config for those platforms with that of the
> other supported platforms, and should reduce the binary size impact
> of enabling ThinLTO. This change is expected to reduce binary size
> for Linux official builds by about 15%.
> 
> There may be unacceptable perf regressions associated with this
> change, but the perf bots should at least let us know where those
> regressions are. I plan to monitor the Linux and Mac perf bots once
> it lands.
> 
> BUG=660216
> R=thakis@chromium.org
> 
> Review-Url: https://codereview.chromium.org/2864383003
> Cr-Commit-Position: refs/heads/master@{#470606}
> Committed: https://chromium.googlesource.com/chromium/src/+/c1269ce7fec8568a1789e07b2b5bb3b630a67f5f

TBR=thakis@chromium.org,pcc@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=660216
Review-Url: https://codereview.chromium.org/2881503002
Cr-Commit-Position: refs/heads/master@{#470793}
Committed: https://chromium.googlesource.com/chromium/src/+/2a6f440fa84a584d916254f9a4c4e4d83c53435f

[yhirano, 2017-05-11 03:20:43]

The CQ bit was checked by yhirano@chromium.org

[yhirano, 2017-05-11 03:20:44]

Created Revert of build: Enable optimize_for_size unconditionally.

[commit-bot: I haz the power, 2017-05-11 03:22:01]

CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-05-11 03:23:22]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1494472843894410, "parent_rev":
"049fd5ff8ae50270cc8c9994b841c2e4e43b9703", "commit_rev":
"2a6f440fa84a584d916254f9a4c4e4d83c53435f"}

[commit-bot: I haz the power, 2017-05-11 03:23:31]

Description was changed from

==========
Revert of build: Enable optimize_for_size unconditionally. (patchset #1 id:1 of
https://codereview.chromium.org/2864383003/ )

Reason for revert:
Causes failures on a MSAN bot.
https://uberchromegw.corp.google.com/i/chromium.memory/builders/Linux%20Chrom...


Original issue's description:
> build: Enable optimize_for_size unconditionally.
> 
> This change causes us to favor size over speed on Linux and Mac,
> which aligns the build config for those platforms with that of the
> other supported platforms, and should reduce the binary size impact
> of enabling ThinLTO. This change is expected to reduce binary size
> for Linux official builds by about 15%.
> 
> There may be unacceptable perf regressions associated with this
> change, but the perf bots should at least let us know where those
> regressions are. I plan to monitor the Linux and Mac perf bots once
> it lands.
> 
> BUG=660216
> R=thakis@chromium.org
> 
> Review-Url: https://codereview.chromium.org/2864383003
> Cr-Commit-Position: refs/heads/master@{#470606}
> Committed:
https://chromium.googlesource.com/chromium/src/+/c1269ce7fec8568a1789e07b2b5b...

TBR=thakis@chromium.org,pcc@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=660216
==========

to

==========
Revert of build: Enable optimize_for_size unconditionally. (patchset #1 id:1 of
https://codereview.chromium.org/2864383003/ )

Reason for revert:
Causes failures on a MSAN bot.
https://uberchromegw.corp.google.com/i/chromium.memory/builders/Linux%20Chrom...


Original issue's description:
> build: Enable optimize_for_size unconditionally.
> 
> This change causes us to favor size over speed on Linux and Mac,
> which aligns the build config for those platforms with that of the
> other supported platforms, and should reduce the binary size impact
> of enabling ThinLTO. This change is expected to reduce binary size
> for Linux official builds by about 15%.
> 
> There may be unacceptable perf regressions associated with this
> change, but the perf bots should at least let us know where those
> regressions are. I plan to monitor the Linux and Mac perf bots once
> it lands.
> 
> BUG=660216
> R=thakis@chromium.org
> 
> Review-Url: https://codereview.chromium.org/2864383003
> Cr-Commit-Position: refs/heads/master@{#470606}
> Committed:
https://chromium.googlesource.com/chromium/src/+/c1269ce7fec8568a1789e07b2b5b...

TBR=thakis@chromium.org,pcc@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=660216

Review-Url: https://codereview.chromium.org/2881503002
Cr-Commit-Position: refs/heads/master@{#470793}
Committed:
https://chromium.googlesource.com/chromium/src/+/2a6f440fa84a584d916254f9a4c4...
==========

[commit-bot: I haz the power, 2017-05-11 03:23:32]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/2a6f440fa84a584d916254f9a4c4...

[pcc1, 2017-05-11 19:41:18]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/2870393005/ by pcc@chromium.org.

The reason for reverting is: Relanding now that the msan issue is fixed:
https://codereview.chromium.org/2876693003.