Control permission bubbles with Finch flag

Control permission bubbles with Finch flag

This adds a Finch trial that can enable and disable bubbles as needed.
The flags will still override the Finch trial.

BUG=364686
TEST=
Visit https://adrifelt.github.io/bubble-demo.html and check to see if
you get a permission bubbles or an infobar, depending on the setting:
1. Infobar: set chrome://flags/#enable-permissions-bubbles to 'Disabled'
2. Bubble: set chrome://flags/#enable-permissions-bubbles to 'Enabled'
3. Infobar: set chrome://flags/#enable-permissions-bubbles to 'Default'
4. Infobar: --force-fieldtrials=PermissionBubbleRollout/Disabled/
5. Bubble: --force-fieldtrials=PermissionBubbleRollout/Enabled/

Committed: https://crrev.com/d1e598f62e1f25492b9fedf91b5ee2d07fa54102
Cr-Commit-Position: refs/heads/master@{#313351}

[felt, 2014-12-17 08:42:52]

felt@chromium.org changed reviewers:
+ gbillock@chromium.org

[felt, 2014-12-17 08:44:19]

Greg, PTAL. I'm prepping this CL to land as soon as all the tests are done.

You can see the first few test CLs in progress:
https://codereview.chromium.org/787033004/
https://codereview.chromium.org/800853004/

[Greg Billock, 2014-12-17 17:19:49]

On 2014/12/17 08:44:19, felt wrote:
> Greg, PTAL. I'm prepping this CL to land as soon as all the tests are done.
> 
> You can see the first few test CLs in progress:
> https://codereview.chromium.org/787033004/
> https://codereview.chromium.org/800853004/

Hurray! You're awesome!

[felt, 2014-12-17 18:28:09]

On 2014/12/17 17:19:49, Greg Billock wrote:
> On 2014/12/17 08:44:19, felt wrote:
> > Greg, PTAL. I'm prepping this CL to land as soon as all the tests are done.
> > 
> > You can see the first few test CLs in progress:
> > https://codereview.chromium.org/787033004/
> > https://codereview.chromium.org/800853004/
> 
> Hurray! You're awesome!

:) Could I get a review stamp on this CL so that I can land it as soon as the
others are done?

[Greg Billock, 2014-12-17 18:53:56]

lgtm

[felt, 2015-01-27 19:46:27]

On 2014/12/17 18:53:56, Greg Billock wrote:
> lgtm

Hi Greg, I've modified this CL to keep the default to "off" but remain
Finch-controlled. I updated the description. Since there's only a tiny change
(true-->false) I am assuming your lgtm is still good and I'm going to send it to
the CQ. If you have concerns lmk and I'll revert and fix.

[felt, 2015-01-27 19:47:05]

The CQ bit was checked by felt@chromium.org

[commit-bot: I haz the power, 2015-01-27 19:47:56]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/791033004/40001

[commit-bot: I haz the power, 2015-01-27 20:46:20]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-01-27 20:47:17]

Patchset 3 (id:??) landed as
https://crrev.com/d1e598f62e1f25492b9fedf91b5ee2d07fa54102
Cr-Commit-Position: refs/heads/master@{#313351}