Reland of actor //tools/gn/bin/gyp_flag_compare.py to be usable in interactive Python.

Reland of actor //tools/gn/bin/gyp_flag_compare.py to be usable in interactive Python. (patchset #1 id:1 of https://codereview.chromium.org/2104083002/ )

Reason for revert:
Revert unwarranted.

Original issue's description:
> Revert of Refactor //tools/gn/bin/gyp_flag_compare.py to be usable in interactive Python. (patchset #1 id:1 of https://codereview.chromium.org/2108683002/ )
>
> Reason for revert:
> A significant number of bots are broken after this landed. This is a speculative revert. Please re-land in case this was not the error.
>
> Original issue's description:
> > Refactor //tools/gn/bin/gyp_flag_compare.py to be usable in interactive Python.
> >
> > When comparing large targets like //chrome, it is nearly impossible to deal with
> > the mountainous 46,000 lines of output the executable script produces. With an
> > interactive environment, it is much easier to compare differences and drill-down
> > into specific issues.
> >
> > BUG=622889
> > R=scottmg@chromium.org
> >
> > Committed: https://chromium.googlesource.com/chromium/src/+/9f1375ea1bfb9f35e48b69f4c10c8ffa3233ca2a
>
> TBR=scottmg@chromium.org,rsesek@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=622889
>
> Committed: https://crrev.com/74af4d66235496370bd173c6139314e8adfecb2e
> Cr-Commit-Position: refs/heads/master@{#402514}

TBR=scottmg@chromium.org,khushalsagar@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=622889
Committed: https://crrev.com/db530b158baf864d61e74ef6d74a8938038ac7b0
Cr-Commit-Position: refs/heads/master@{#402533}

[Robert Sesek, 2016-06-28 20:15:43]

The CQ bit was checked by rsesek@chromium.org

[Robert Sesek, 2016-06-28 20:15:43]

Created Reland of actor //tools/gn/bin/gyp_flag_compare.py to be usable in
interactive Python.

[commit-bot: I haz the power, 2016-06-28 20:17:32]

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, 2016-06-28 20:30:47]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-28 20:34:17]

Description was changed from

==========
Reland of actor //tools/gn/bin/gyp_flag_compare.py to be usable in interactive
Python. (patchset #1 id:1 of https://codereview.chromium.org/2104083002/ )

Reason for revert:
Revert unwarranted.

Original issue's description:
> Revert of Refactor //tools/gn/bin/gyp_flag_compare.py to be usable in
interactive Python. (patchset #1 id:1 of
https://codereview.chromium.org/2108683002/ )
> 
> Reason for revert:
> A significant number of bots are broken after this landed. This is a
speculative revert. Please re-land in case this was not the error.
> 
> Original issue's description:
> > Refactor //tools/gn/bin/gyp_flag_compare.py to be usable in interactive
Python.
> >
> > When comparing large targets like //chrome, it is nearly impossible to deal
with
> > the mountainous 46,000 lines of output the executable script produces. With
an
> > interactive environment, it is much easier to compare differences and
drill-down
> > into specific issues.
> >
> > BUG=622889
> > R=scottmg@chromium.org
> >
> > Committed:
https://chromium.googlesource.com/chromium/src/+/9f1375ea1bfb9f35e48b69f4c10c...
> 
> TBR=scottmg@chromium.org,rsesek@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=622889
> 
> Committed: https://crrev.com/74af4d66235496370bd173c6139314e8adfecb2e
> Cr-Commit-Position: refs/heads/master@{#402514}

TBR=scottmg@chromium.org,khushalsagar@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=622889
==========

to

==========
Reland of actor //tools/gn/bin/gyp_flag_compare.py to be usable in interactive
Python. (patchset #1 id:1 of https://codereview.chromium.org/2104083002/ )

Reason for revert:
Revert unwarranted.

Original issue's description:
> Revert of Refactor //tools/gn/bin/gyp_flag_compare.py to be usable in
interactive Python. (patchset #1 id:1 of
https://codereview.chromium.org/2108683002/ )
>
> Reason for revert:
> A significant number of bots are broken after this landed. This is a
speculative revert. Please re-land in case this was not the error.
>
> Original issue's description:
> > Refactor //tools/gn/bin/gyp_flag_compare.py to be usable in interactive
Python.
> >
> > When comparing large targets like //chrome, it is nearly impossible to deal
with
> > the mountainous 46,000 lines of output the executable script produces. With
an
> > interactive environment, it is much easier to compare differences and
drill-down
> > into specific issues.
> >
> > BUG=622889
> > R=scottmg@chromium.org
> >
> > Committed:
https://chromium.googlesource.com/chromium/src/+/9f1375ea1bfb9f35e48b69f4c10c...
>
> TBR=scottmg@chromium.org,rsesek@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=622889
>
> Committed: https://crrev.com/74af4d66235496370bd173c6139314e8adfecb2e
> Cr-Commit-Position: refs/heads/master@{#402514}

TBR=scottmg@chromium.org,khushalsagar@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=622889

Committed: https://crrev.com/db530b158baf864d61e74ef6d74a8938038ac7b0
Cr-Commit-Position: refs/heads/master@{#402533}
==========

[commit-bot: I haz the power, 2016-06-28 20:34:18]

Patchset 1 (id:??) landed as
https://crrev.com/db530b158baf864d61e74ef6d74a8938038ac7b0
Cr-Commit-Position: refs/heads/master@{#402533}