Reland of Size limit gtest collect

Reland of Size limit gtest collect (patchset #1 id:1 of https://codereview.chromium.org/2372853002/ )

Reason for revert:
Trying again, since the original patch seemed to fix the linux tryserver.

Original issue's description:
> Revert of Size limit gtest collect (patchset #2 id:20001 of https://codereview.chromium.org/2372783002/ )
> 
> Reason for revert:
> Might have caused https://crbug.com/650476
> 
> Original issue's description:
> > Size limit gtest collect
> > 
> > BUG=634418
> > 
> > Committed: https://chromium.googlesource.com/chromium/tools/build/+/13fccd9dc8576ce524c2e44bd5513a6e822cae0e
> 
> TBR=maruel@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=634418
> 
> Committed: https://chromium.googlesource.com/chromium/tools/build/+/dcab1a31d35170b6dfcea53103b3fa147a100ab2

TBR=maruel@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=634418
Committed: https://chromium.googlesource.com/chromium/tools/build/+/40e9906b197269352a29f4bf2d0841bfe948d9b7

[martiniss, 2016-09-27 00:01:17]

Created Reland of Size limit gtest collect

[martiniss, 2016-09-27 00:06:28]

The CQ bit was checked by martiniss@chromium.org

[commit-bot: I haz the power, 2016-09-27 00:06:34]

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, 2016-09-27 00:06:41]

Description was changed from

==========
Reland of Size limit gtest collect (patchset #1 id:1 of
https://codereview.chromium.org/2372853002/ )

Reason for revert:
Trying again, since the original patch seemed to fix the linux tryserver.

Original issue's description:
> Revert of Size limit gtest collect (patchset #2 id:20001 of
https://codereview.chromium.org/2372783002/ )
> 
> Reason for revert:
> Might have caused https://crbug.com/650476
> 
> Original issue's description:
> > Size limit gtest collect
> > 
> > BUG=634418
> > 
> > Committed:
https://chromium.googlesource.com/chromium/tools/build/+/13fccd9dc8576ce524c2...
> 
> TBR=maruel@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=634418
> 
> Committed:
https://chromium.googlesource.com/chromium/tools/build/+/dcab1a31d35170b6dfce...

TBR=maruel@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=634418
==========

to

==========
Reland of Size limit gtest collect (patchset #1 id:1 of
https://codereview.chromium.org/2372853002/ )

Reason for revert:
Trying again, since the original patch seemed to fix the linux tryserver.

Original issue's description:
> Revert of Size limit gtest collect (patchset #2 id:20001 of
https://codereview.chromium.org/2372783002/ )
> 
> Reason for revert:
> Might have caused https://crbug.com/650476
> 
> Original issue's description:
> > Size limit gtest collect
> > 
> > BUG=634418
> > 
> > Committed:
https://chromium.googlesource.com/chromium/tools/build/+/13fccd9dc8576ce524c2...
> 
> TBR=maruel@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=634418
> 
> Committed:
https://chromium.googlesource.com/chromium/tools/build/+/dcab1a31d35170b6dfce...

TBR=maruel@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=634418

Committed:
https://chromium.googlesource.com/chromium/tools/build/+/40e9906b197269352a29...
==========

[commit-bot: I haz the power, 2016-09-27 00:06:42]

Committed patchset #2 (id:40001) as
https://chromium.googlesource.com/chromium/tools/build/+/40e9906b197269352a29...

[Vadim Sh., 2016-09-27 00:10:55]

vadimsh@chromium.org changed reviewers:
+ vadimsh@chromium.org

[Vadim Sh., 2016-09-27 00:10:56]

https://codereview.chromium.org/2372713003/diff/40001/scripts/slave/recipe_mo...
File scripts/slave/recipe_modules/swarming/resources/collect_gtest_task.py
(right):

https://codereview.chromium.org/2372713003/diff/40001/scripts/slave/recipe_mo...
scripts/slave/recipe_modules/swarming/resources/collect_gtest_task.py:108: if
filesize > OUTPUT_JSON_SIZE_LIMIT:
please log this to stderr

https://codereview.chromium.org/2372713003/diff/40001/scripts/slave/recipe_mo...
scripts/slave/recipe_modules/swarming/resources/collect_gtest_task.py:113:
except (IOError, ValueError):
catch OSError here, since os.stat can raise it now if 'path' is missing