Revert of autofill: switch autofill_regexes to RE2 library

Revert of autofill: switch autofill_regexes to RE2 library (patchset #16 id:300001 of https://codereview.chromium.org/1453193002/ )

Reason for revert:
This caused a memory perf regression on android.

BUG=568134
Original issue's description:
> autofill: switch autofill_regexes to RE2 library
>
> This moves it away from using regex library from icu to the in-house re2
> library that is known to have a better performance and be much more
> lightweight and much less verbose to write code.
>
> BUG=470065
> TEST=components_unittests --gtest_filter=*Autofill*
> R=vabr@chromium.org,isherman@chromium.org
>
> Committed: https://crrev.com/2df535152b8023dc3dcbc7dd8c7f1a1e3d959e13
> Cr-Commit-Position: refs/heads/master@{#363835}

TBR=isherman@chromium.org,vabr@chromium.org,estade@chromium.org,mathp@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=470065
Committed: https://crrev.com/09fbd7763570425e426178663a9549cd4579aa90
Cr-Commit-Position: refs/heads/master@{#364412}

[tfarina, 2015-12-10 18:41:50]

Created Revert of autofill: switch autofill_regexes to RE2 library

[commit-bot: I haz the power, 2015-12-10 18:42:44]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1518783002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1518783002/1

[commit-bot: I haz the power, 2015-12-10 18:45:07]

Description was changed from

==========
Revert of autofill: switch autofill_regexes to RE2 library (patchset #16
id:300001 of https://codereview.chromium.org/1453193002/ )

Reason for revert:
This caused a memory perf regression on android.

BUG=568134

Original issue's description:
> autofill: switch autofill_regexes to RE2 library
> 
> This moves it away from using regex library from icu to the in-house re2
> library that is known to have a better performance and be much more
> lightweight and much less verbose to write code.
> 
> BUG=470065
> TEST=components_unittests --gtest_filter=*Autofill*
> R=vabr@chromium.org,isherman@chromium.org
> 
> Committed: https://crrev.com/2df535152b8023dc3dcbc7dd8c7f1a1e3d959e13
> Cr-Commit-Position: refs/heads/master@{#363835}

TBR=isherman@chromium.org,vabr@chromium.org,estade@chromium.org,mathp@chromiu...
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=470065
==========

to

==========
Revert of autofill: switch autofill_regexes to RE2 library (patchset #16
id:300001 of https://codereview.chromium.org/1453193002/ )

Reason for revert:
This caused a memory perf regression on android.

BUG=568134

Original issue's description:
> autofill: switch autofill_regexes to RE2 library
> 
> This moves it away from using regex library from icu to the in-house re2
> library that is known to have a better performance and be much more
> lightweight and much less verbose to write code.
> 
> BUG=470065
> TEST=components_unittests --gtest_filter=*Autofill*
> R=vabr@chromium.org,isherman@chromium.org
> 
> Committed: https://crrev.com/2df535152b8023dc3dcbc7dd8c7f1a1e3d959e13
> Cr-Commit-Position: refs/heads/master@{#363835}

TBR=isherman@chromium.org,vabr@chromium.org,estade@chromium.org,mathp@chromiu...
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=470065
==========

[commit-bot: I haz the power, 2015-12-10 18:45:08]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-12-10 18:46:13]

Description was changed from

==========
Revert of autofill: switch autofill_regexes to RE2 library (patchset #16
id:300001 of https://codereview.chromium.org/1453193002/ )

Reason for revert:
This caused a memory perf regression on android.

BUG=568134

Original issue's description:
> autofill: switch autofill_regexes to RE2 library
> 
> This moves it away from using regex library from icu to the in-house re2
> library that is known to have a better performance and be much more
> lightweight and much less verbose to write code.
> 
> BUG=470065
> TEST=components_unittests --gtest_filter=*Autofill*
> R=vabr@chromium.org,isherman@chromium.org
> 
> Committed: https://crrev.com/2df535152b8023dc3dcbc7dd8c7f1a1e3d959e13
> Cr-Commit-Position: refs/heads/master@{#363835}

TBR=isherman@chromium.org,vabr@chromium.org,estade@chromium.org,mathp@chromiu...
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=470065
==========

to

==========
Revert of autofill: switch autofill_regexes to RE2 library (patchset #16
id:300001 of https://codereview.chromium.org/1453193002/ )

Reason for revert:
This caused a memory perf regression on android.

BUG=568134

Original issue's description:
> autofill: switch autofill_regexes to RE2 library
>
> This moves it away from using regex library from icu to the in-house re2
> library that is known to have a better performance and be much more
> lightweight and much less verbose to write code.
>
> BUG=470065
> TEST=components_unittests --gtest_filter=*Autofill*
> R=vabr@chromium.org,isherman@chromium.org
>
> Committed: https://crrev.com/2df535152b8023dc3dcbc7dd8c7f1a1e3d959e13
> Cr-Commit-Position: refs/heads/master@{#363835}

TBR=isherman@chromium.org,vabr@chromium.org,estade@chromium.org,mathp@chromiu...
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=470065

Committed: https://crrev.com/09fbd7763570425e426178663a9549cd4579aa90
Cr-Commit-Position: refs/heads/master@{#364412}
==========

[commit-bot: I haz the power, 2015-12-10 18:46:14]

Patchset 1 (id:??) landed as
https://crrev.com/09fbd7763570425e426178663a9549cd4579aa90
Cr-Commit-Position: refs/heads/master@{#364412}