Add a no-op measurement

Add a no-op measurement

Some pages you just want to let run while the profiler runs. This
no_op measurement does just that.

R=tonyg
CC=eseidel

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=238370

[nduca, 2013-12-03 02:41:56]

ptal

[tonyg, 2013-12-03 02:46:44]

lgtm

This is cool. Will also be useful with the new --interactive flag.

https://codereview.chromium.org/100933002/diff/1/tools/perf/measurements/no_o...
File tools/perf/measurements/no_op.py (right):

https://codereview.chromium.org/100933002/diff/1/tools/perf/measurements/no_o...
tools/perf/measurements/no_op.py:12: return hasattr(page, 'no_op')
Does this prevent it from working with most page sets? I feel like this should
be able to run for all pages.

https://codereview.chromium.org/100933002/diff/1/tools/perf/measurements/no_o...
tools/perf/measurements/no_op.py:17: def DidRunAction(self, page, tab, action):
Are Will/DidRunAction really necessary?

[eseidel, 2013-12-03 03:06:13]

It appears "CC=" doesn't actually seem to work.  I wonder if it is supposed to.
:)  (If so, we should file a bug against Infra.)

[commit-bot: I haz the power, 2013-12-03 03:31:35]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/nduca@chromium.org/100933002/1

[commit-bot: I haz the power, 2013-12-03 12:28:05]

Change committed as 238370