DevTools: remove most convenience wrappers from WI.TimelineModel.Record

DevTools: remove most convenience wrappers from WI.TimelineModel.Record

These were mostly for the convenience of layout tests, rarely used in the
prod code. Let's keep TimelineModel.Record() a thin wrapper that just adds
hierarchy to trace events and keep timeline-specific logic away from it,
since it has to work for bare trace events most of the time.

BUG=

Committed: https://crrev.com/27e3e53b8921271d2a9ae30e172ee257999f883d
git-svn-id: svn://svn.chromium.org/blink/trunk@202020 bbb929c8-8fbe-4397-9dbb-9b2b20218538

[caseq, 2015-09-09 22:49:08]

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

[yurys, 2015-09-10 00:10:16]

lgtm

https://codereview.chromium.org/1315373005/diff/1/LayoutTests/http/tests/insp...
File LayoutTests/http/tests/inspector/timeline-test.js (right):

https://codereview.chromium.org/1315373005/diff/1/LayoutTests/http/tests/insp...
LayoutTests/http/tests/inspector/timeline-test.js:299: if (object[field] ===
null || object[field] === undefined)
Can we get formatters to take care of this?

[caseq, 2015-09-10 00:54:04]

On 2015/09/10 00:10:16, yurys wrote:
> lgtm
> 
>
https://codereview.chromium.org/1315373005/diff/1/LayoutTests/http/tests/insp...
> File LayoutTests/http/tests/inspector/timeline-test.js (right):
> 
>
https://codereview.chromium.org/1315373005/diff/1/LayoutTests/http/tests/insp...
> LayoutTests/http/tests/inspector/timeline-test.js:299: if (object[field] ===
> null || object[field] === undefined)
> Can we get formatters to take care of this?

Now with current addObject implementation -- i.e. formatter can't indicate that
the field is skipped. I'd defer this till we need it a second time.

[caseq, 2015-09-10 00:54:07]

The CQ bit was checked by caseq@chromium.org

[commit-bot: I haz the power, 2015-09-10 00:54:13]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1315373005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1315373005/1

[commit-bot: I haz the power, 2015-09-10 03:26:37]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=202020

[commit-bot: I haz the power, 2015-09-23 12:06:46]

Patchset 1 (id:??) landed as
https://crrev.com/27e3e53b8921271d2a9ae30e172ee257999f883d