Added a WebRTC HD page to telemetry.

Added a WebRTC HD measurement.

This test measures CPU and memory when we acquire a HD stream with
WebRTC. The existing local-video.html demo will acquire whatever is the
default, which currently is VGA.

The demo page is taken from our GitHub demo repository and is only
lightly edited to get js paths right.

BUG=413577
Committed: https://crrev.com/01f80ea68b50db5110b2c97974e0969f17a7c6c9
Cr-Commit-Position: refs/heads/master@{#296700}

[phoglund_chromium, 2014-09-12 10:44:06]

phoglund@chromium.org changed reviewers:
+ qyearsley@chromium.org

[qyearsley, 2014-09-23 17:01:35]

LGTM, although I want to confirm that this is what we want to do with the
RunEndure method here now.

https://codereview.chromium.org/551863005/diff/40001/tools/perf/page_sets/web...
File tools/perf/page_sets/webrtc_cases.py (right):

https://codereview.chromium.org/551863005/diff/40001/tools/perf/page_sets/web...
tools/perf/page_sets/webrtc_cases.py:64: action_runner.Wait(10)
1. Might we want to remove the RunEndure method for now since it's not in use?

2. If we do keep it, and we know we want it to be the same as RunWebrtc, then
maybe it should just call RunWebrtc?

def RunEndure(self, action_runner):
  self.RunWebrtc(action_runner)

https://codereview.chromium.org/551863005/diff/40001/tools/perf/page_sets/web...
tools/perf/page_sets/webrtc_cases.py:78: bucket=page_set_module.PUBLIC_BUCKET,
I'm not very familiar what with this now, but if it fits the pattern used by
other page sets, then it's OK I think.

[phoglund_chromium, 2014-09-25 11:31:58]

https://codereview.chromium.org/551863005/diff/40001/tools/perf/page_sets/web...
File tools/perf/page_sets/webrtc_cases.py (right):

https://codereview.chromium.org/551863005/diff/40001/tools/perf/page_sets/web...
tools/perf/page_sets/webrtc_cases.py:64: action_runner.Wait(10)
Yeah, I double-checked and nobody calls RunEndure anymore, so I'll just throw
those away.

https://codereview.chromium.org/551863005/diff/40001/tools/perf/page_sets/web...
tools/perf/page_sets/webrtc_cases.py:78: bucket=page_set_module.PUBLIC_BUCKET,
On 2014/09/23 17:01:35, qyearsley wrote:
> I'm not very familiar what with this now, but if it fits the pattern used by
> other page sets, then it's OK I think.
I copied it from another page set, so I think so.

[phoglund_chromium, 2014-09-25 11:32:03]

The CQ bit was checked by phoglund@chromium.org

[commit-bot: I haz the power, 2014-09-25 11:32:57]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/551863005/60001

[commit-bot: I haz the power, 2014-09-25 12:28:39]

Committed patchset #4 (id:60001) as bcb3d20d9242fe6d919f2296eff9ef7a945ad6b8

[commit-bot: I haz the power, 2014-09-25 12:29:17]

Patchset 4 (id:??) landed as
https://crrev.com/01f80ea68b50db5110b2c97974e0969f17a7c6c9
Cr-Commit-Position: refs/heads/master@{#296700}