Revert of Convert enable_pre_sync_backup flag to new flags system.

Revert of Convert enable_pre_sync_backup flag to new flags system. (patchset #2 id:20001 of https://codereview.chromium.org/1487873003/ )

Reason for revert:
Speculative revert, CrOS compile broken, more info on the bug.
BUG=563927
Original issue's description:
> Convert enable_pre_sync_backup flag to new flags system.
>
> This flag's usage is very isolated so is a good candidate for the new system. There is now a generated header for the #define rather than a global define.
>
> Reland of http://crrev.com/1478623004#ps60001
> TBR=zea@chromium.org
>
> Committed: https://crrev.com/db7f9756dc6e236589b90c76d6fa0f1244601e78
> Cr-Commit-Position: refs/heads/master@{#362365}

TBR=zea@chromium.org,brettw@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/3c201fa28b53246177fed8d6b9454da4b0625df2
Cr-Commit-Position: refs/heads/master@{#362368}

[vabr (Chromium), 2015-12-01 09:31:20]

Created Revert of Convert enable_pre_sync_backup flag to new flags system.

[vabr (Chromium), 2015-12-01 09:33:30]

The CQ bit was unchecked by vabr@chromium.org

[vabr (Chromium), 2015-12-01 09:33:36]

The CQ bit was checked by vabr@chromium.org

[commit-bot: I haz the power, 2015-12-01 09:34:01]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1490713002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1490713002/1

[commit-bot: I haz the power, 2015-12-01 09:35:34]

Description was changed from

==========
Revert of Convert enable_pre_sync_backup flag to new flags system. (patchset #2
id:20001 of https://codereview.chromium.org/1487873003/ )

Reason for revert:
Speculative revert, CrOS compile broken, more info on the bug.
BUG=563927

Original issue's description:
> Convert enable_pre_sync_backup flag to new flags system.
> 
> This flag's usage is very isolated so is a good candidate for the new system.
There is now a generated header for the #define rather than a global define.
> 
> Reland of http://crrev.com/1478623004#ps60001
> TBR=zea@chromium.org
> 
> Committed: https://crrev.com/db7f9756dc6e236589b90c76d6fa0f1244601e78
> Cr-Commit-Position: refs/heads/master@{#362365}

TBR=zea@chromium.org,brettw@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

to

==========
Revert of Convert enable_pre_sync_backup flag to new flags system. (patchset #2
id:20001 of https://codereview.chromium.org/1487873003/ )

Reason for revert:
Speculative revert, CrOS compile broken, more info on the bug.
BUG=563927

Original issue's description:
> Convert enable_pre_sync_backup flag to new flags system.
> 
> This flag's usage is very isolated so is a good candidate for the new system.
There is now a generated header for the #define rather than a global define.
> 
> Reland of http://crrev.com/1478623004#ps60001
> TBR=zea@chromium.org
> 
> Committed: https://crrev.com/db7f9756dc6e236589b90c76d6fa0f1244601e78
> Cr-Commit-Position: refs/heads/master@{#362365}

TBR=zea@chromium.org,brettw@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

[commit-bot: I haz the power, 2015-12-01 09:35:35]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-12-01 09:36:26]

Description was changed from

==========
Revert of Convert enable_pre_sync_backup flag to new flags system. (patchset #2
id:20001 of https://codereview.chromium.org/1487873003/ )

Reason for revert:
Speculative revert, CrOS compile broken, more info on the bug.
BUG=563927

Original issue's description:
> Convert enable_pre_sync_backup flag to new flags system.
> 
> This flag's usage is very isolated so is a good candidate for the new system.
There is now a generated header for the #define rather than a global define.
> 
> Reland of http://crrev.com/1478623004#ps60001
> TBR=zea@chromium.org
> 
> Committed: https://crrev.com/db7f9756dc6e236589b90c76d6fa0f1244601e78
> Cr-Commit-Position: refs/heads/master@{#362365}

TBR=zea@chromium.org,brettw@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

to

==========
Revert of Convert enable_pre_sync_backup flag to new flags system. (patchset #2
id:20001 of https://codereview.chromium.org/1487873003/ )

Reason for revert:
Speculative revert, CrOS compile broken, more info on the bug.
BUG=563927

Original issue's description:
> Convert enable_pre_sync_backup flag to new flags system.
>
> This flag's usage is very isolated so is a good candidate for the new system.
There is now a generated header for the #define rather than a global define.
>
> Reland of http://crrev.com/1478623004#ps60001
> TBR=zea@chromium.org
>
> Committed: https://crrev.com/db7f9756dc6e236589b90c76d6fa0f1244601e78
> Cr-Commit-Position: refs/heads/master@{#362365}

TBR=zea@chromium.org,brettw@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/3c201fa28b53246177fed8d6b9454da4b0625df2
Cr-Commit-Position: refs/heads/master@{#362368}
==========

[commit-bot: I haz the power, 2015-12-01 09:36:27]

Patchset 1 (id:??) landed as
https://crrev.com/3c201fa28b53246177fed8d6b9454da4b0625df2
Cr-Commit-Position: refs/heads/master@{#362368}

[vabr (Chromium), 2015-12-01 09:45:38]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1490723002/ by vabr@chromium.org.

The reason for reverting is: Speculative revert did not help. Relanding..