Revert of DevTools: remove UISourceCodeFrame from context when switching panels.

Revert of DevTools: remove UISourceCodeFrame from context when switching panels. (patchset #2 id:20001 of https://codereview.chromium.org/2287713002/ )

Reason for revert:
I'll have a better one for merge.

Original issue's description:
> DevTools: remove UISourceCodeFrame from context when switching panels.
>
> BUG=640375
>
> Committed: https://crrev.com/0cfac8a68fbabad4515c0a9f58c9e1dffd8c4a74
> Cr-Commit-Position: refs/heads/master@{#415105}

TBR=alph@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=640375
Committed: https://crrev.com/2082aee94be65ebdcc86e5b6e667537564ac837b
Cr-Commit-Position: refs/heads/master@{#416753}

[pfeldman, 2016-09-06 18:05:31]

The CQ bit was checked by pfeldman@chromium.org

[pfeldman, 2016-09-06 18:05:31]

Created Revert of DevTools: remove UISourceCodeFrame from context when switching
panels.

[commit-bot: I haz the power, 2016-09-06 18:05:56]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[alph, 2016-09-06 18:53:01]

lgtm

[commit-bot: I haz the power, 2016-09-06 23:07:44]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-06 23:11:58]

Description was changed from

==========
Revert of DevTools: remove UISourceCodeFrame from context when switching panels.
(patchset #2 id:20001 of https://codereview.chromium.org/2287713002/ )

Reason for revert:
I'll have a better one for merge.

Original issue's description:
> DevTools: remove UISourceCodeFrame from context when switching panels.
> 
> BUG=640375
> 
> Committed: https://crrev.com/0cfac8a68fbabad4515c0a9f58c9e1dffd8c4a74
> Cr-Commit-Position: refs/heads/master@{#415105}

TBR=alph@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=640375
==========

to

==========
Revert of DevTools: remove UISourceCodeFrame from context when switching panels.
(patchset #2 id:20001 of https://codereview.chromium.org/2287713002/ )

Reason for revert:
I'll have a better one for merge.

Original issue's description:
> DevTools: remove UISourceCodeFrame from context when switching panels.
>
> BUG=640375
>
> Committed: https://crrev.com/0cfac8a68fbabad4515c0a9f58c9e1dffd8c4a74
> Cr-Commit-Position: refs/heads/master@{#415105}

TBR=alph@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=640375

Committed: https://crrev.com/2082aee94be65ebdcc86e5b6e667537564ac837b
Cr-Commit-Position: refs/heads/master@{#416753}
==========

[commit-bot: I haz the power, 2016-09-06 23:11:59]

Patchset 1 (id:??) landed as
https://crrev.com/2082aee94be65ebdcc86e5b6e667537564ac837b
Cr-Commit-Position: refs/heads/master@{#416753}