Error handling and refactoring in tools/linux/procfs.py, and rename multi-process-rss.py.

Error handling and refactoring in tools/linux/procfs.py, and rename multi-process-rss.py.

BUG=324194
TEST=None
NOTRY=True

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=242476

[Dai Mikurube (NOT FULLTIME), 2013-12-06 10:07:26]

Could you take a look when you have time?

It's separated from https://codereview.chromium.org/106973006/ since I had some
errors when I tried to upload in one change. This change is intended to be
committed after https://codereview.chromium.org/106973006/.

[peria, 2013-12-09 05:08:13]

LGTM with a nit.

https://codereview.chromium.org/108073002/diff/1/tools/linux/procfs.py
File tools/linux/procfs.py (right):

https://codereview.chromium.org/108073002/diff/1/tools/linux/procfs.py#newcod...
tools/linux/procfs.py:143: except (IOError, OSError):
You use two styles to catch multiple-type exceptions as following.
Please unify them, unless you would like to add different behaviors depending on
errors.


At #143 and #160
except (IOError, OSError):
  return None

At #345 and #589
except IOError:
  return None
except OSError:
  return NOne

[Dai Mikurube (NOT FULLTIME), 2013-12-25 04:28:21]

Thanks!

[commit-bot: I haz the power, 2013-12-25 04:28:37]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/dmikurube@chromium.org/108073002/20001

[commit-bot: I haz the power, 2013-12-25 04:28:49]

Change committed as 242476