DevTools: Handle idle frames on timeline events overview.

DevTools: Handle idle frames on timeline events overview.

Just show gaps on the frame bar for idle frames.

BUG=497031
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=196691

[alph, 2015-06-05 17:18:42]

alph@chromium.org changed reviewers:
+ caseq@chromium.org

[alph, 2015-06-08 15:47:35]

alph@chromium.org changed reviewers:
+ yurys@chromium.org

[alph, 2015-06-08 15:47:35]

friendly ping

[caseq, 2015-06-08 15:48:31]

Is there a screenshot for this one?

[yurys, 2015-06-08 15:49:32]

lgtm

[yurys, 2015-06-08 15:49:36]

The CQ bit was checked by yurys@chromium.org

[commit-bot: I haz the power, 2015-06-08 15:49:58]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1165113004/1

[caseq, 2015-06-08 15:50:37]

The CQ bit was unchecked by caseq@chromium.org

[alph, 2015-06-08 15:50:55]

On 2015/06/08 15:48:31, caseq wrote:
> Is there a screenshot for this one?

It doesn't make any significant change to the view.

[caseq, 2015-06-08 15:53:46]

On 2015/06/08 15:50:55, alph wrote:
> On 2015/06/08 15:48:31, caseq wrote:
> > Is there a screenshot for this one?
> 
> It doesn't make any significant change to the view.

I wonder if we can distinguish low-FPS periods from idle ones?

[alph, 2015-06-08 15:59:18]

On 2015/06/08 15:53:46, caseq wrote:
> On 2015/06/08 15:50:55, alph wrote:
> > On 2015/06/08 15:48:31, caseq wrote:
> > > Is there a screenshot for this one?
> > 
> > It doesn't make any significant change to the view.
> 
> I wonder if we can distinguish low-FPS periods from idle ones?

That's what the patch does. Low fps is one line thick, idle is a gap.

[alph, 2015-06-08 19:01:49]

The CQ bit was checked by alph@chromium.org

[commit-bot: I haz the power, 2015-06-08 19:02:21]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1165113004/1

[commit-bot: I haz the power, 2015-06-08 19:05:53]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=196691