Revert of Timeline: extract and rename TracingModelLoader into a file of its own

Revert of Timeline: extract and rename TracingModelLoader into a file of its own (patchset #4 id:60001 of https://codereview.chromium.org/1739193003/ )

Reason for revert:
Possible cause behind failure in webkit-tests on WebKit Mac10.11 and WebKit Mac10.11 (retina).

Original issue's description:
> Timeline: extract and rename TracingModelLoader into a file of its own
>
> This just extracts TimelineLoader with the aim of later  refactoring
> it to untangle timeline lifecycle events from TimelineModel.
>
> Committed: https://crrev.com/b994e8b0a8af48aca6aa2182b5e8157b4873c0e9
> Cr-Commit-Position: refs/heads/master@{#378109}

TBR=alph@chromium.org,caseq@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.

Committed: https://crrev.com/c4ffa58b1a2c1eb0484dc21b68632e96c070652c
Cr-Commit-Position: refs/heads/master@{#378291}

[nektarios, 2016-02-29 20:43:31]

Created Revert of Timeline: extract and rename TracingModelLoader into a file of
its own

[commit-bot: I haz the power, 2016-02-29 20:43:58]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1752453002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1752453002/1

[commit-bot: I haz the power, 2016-02-29 21:01:47]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1752453002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1752453002/1

[commit-bot: I haz the power, 2016-02-29 21:31:42]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1752453002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1752453002/1

[commit-bot: I haz the power, 2016-02-29 22:02:34]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1752453002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1752453002/1

[commit-bot: I haz the power, 2016-02-29 22:26:54]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-02-29 22:27:44]

Description was changed from

==========
Revert of Timeline: extract and rename TracingModelLoader into a file of its own
(patchset #4 id:60001 of https://codereview.chromium.org/1739193003/ )

Reason for revert:
Possible cause behind failure in webkit-tests on WebKit Mac10.11 and WebKit
Mac10.11 (retina).

Original issue's description:
> Timeline: extract and rename TracingModelLoader into a file of its own
> 
> This just extracts TimelineLoader with the aim of later  refactoring
> it to untangle timeline lifecycle events from TimelineModel.
> 
> Committed: https://crrev.com/b994e8b0a8af48aca6aa2182b5e8157b4873c0e9
> Cr-Commit-Position: refs/heads/master@{#378109}

TBR=alph@chromium.org,caseq@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
==========

to

==========
Revert of Timeline: extract and rename TracingModelLoader into a file of its own
(patchset #4 id:60001 of https://codereview.chromium.org/1739193003/ )

Reason for revert:
Possible cause behind failure in webkit-tests on WebKit Mac10.11 and WebKit
Mac10.11 (retina).

Original issue's description:
> Timeline: extract and rename TracingModelLoader into a file of its own
>
> This just extracts TimelineLoader with the aim of later  refactoring
> it to untangle timeline lifecycle events from TimelineModel.
>
> Committed: https://crrev.com/b994e8b0a8af48aca6aa2182b5e8157b4873c0e9
> Cr-Commit-Position: refs/heads/master@{#378109}

TBR=alph@chromium.org,caseq@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.

Committed: https://crrev.com/c4ffa58b1a2c1eb0484dc21b68632e96c070652c
Cr-Commit-Position: refs/heads/master@{#378291}
==========

[commit-bot: I haz the power, 2016-02-29 22:27:45]

Patchset 1 (id:??) landed as
https://crrev.com/c4ffa58b1a2c1eb0484dc21b68632e96c070652c
Cr-Commit-Position: refs/heads/master@{#378291}

[caseq, 2016-03-01 17:24:40]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1754713002/ by caseq@chromium.org.

The reason for reverting is: Reverting of revert, it doesn't look to me this was
the culprit in layout test failures..