Revert of [DevTools] Consolidate overlay-related functionality in Overlay domain

Revert of [DevTools] Consolidate overlay-related functionality in Overlay domain (patchset #6 id:100001 of https://codereview.chromium.org/2819183002/ )

Reason for revert:
This caused a lot of test failures in WebKit Linux Trusty Leak:
https://uberchromegw.corp.google.com/i/chromium.webkit/builders/WebKit%20Linux%20Trusty%20Leak/builds/4105/steps/webkit_tests
https://uberchromegw.corp.google.com/i/chromium.webkit/builders/WebKit%20Linux%20Trusty%20Leak/builds/4105

Original issue's description:
> [DevTools] Consolidate overlay-related functionality in Overlay domain
> 
> This turns InspectorOverlay into InspectorOverlayAgent with respective
> lifetime and domain:
> - rendering domain merges into overlay;
> - Page.configureOverlay moves to overlay;
> - highlighting and inspect mode move from DOM to overlay.
> 
> BUG=none
> TBR=skyostil@chromium.org
> 
> Review-Url: https://codereview.chromium.org/2819183002
> Cr-Original-Commit-Position: refs/heads/master@{#465422}
> Committed: https://chromium.googlesource.com/chromium/src/+/8982f602a8e1f521949d8dd8dae58cff1c787bec
> Review-Url: https://codereview.chromium.org/2819183002
> Cr-Commit-Position: refs/heads/master@{#465812}
> Committed: https://chromium.googlesource.com/chromium/src/+/7afbb9a64fbd30254a2dab9a689648621fa29f14

TBR=pfeldman@chromium.org,skyostil@chromium.org,dgozman@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=none

Review-Url: https://codereview.chromium.org/2827183003
Cr-Commit-Position: refs/heads/master@{#465849}
Committed: https://chromium.googlesource.com/chromium/src/+/e4c132b04e4a9b43b9d8db37f0ef7895c53d4fb5

[aboxhall, 2017-04-20 01:32:25]

The CQ bit was checked by aboxhall@chromium.org

[aboxhall, 2017-04-20 01:32:26]

Created Revert of [DevTools] Consolidate overlay-related functionality in
Overlay domain

[commit-bot: I haz the power, 2017-04-20 01:33:19]

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

[commit-bot: I haz the power, 2017-04-20 01:34:41]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1492651945187870, "parent_rev":
"78c56d19e627921c58ba360203310197ed338f40", "commit_rev":
"e4c132b04e4a9b43b9d8db37f0ef7895c53d4fb5"}

[commit-bot: I haz the power, 2017-04-20 01:34:55]

Description was changed from

==========
Revert of [DevTools] Consolidate overlay-related functionality in Overlay domain
(patchset #6 id:100001 of https://codereview.chromium.org/2819183002/ )

Reason for revert:
This caused a lot of test failures in WebKit Linux Trusty Leak:
https://uberchromegw.corp.google.com/i/chromium.webkit/builders/WebKit%20Linu...
https://uberchromegw.corp.google.com/i/chromium.webkit/builders/WebKit%20Linu...

Original issue's description:
> [DevTools] Consolidate overlay-related functionality in Overlay domain
> 
> This turns InspectorOverlay into InspectorOverlayAgent with respective
> lifetime and domain:
> - rendering domain merges into overlay;
> - Page.configureOverlay moves to overlay;
> - highlighting and inspect mode move from DOM to overlay.
> 
> BUG=none
> TBR=skyostil@chromium.org
> 
> Review-Url: https://codereview.chromium.org/2819183002
> Cr-Original-Commit-Position: refs/heads/master@{#465422}
> Committed:
https://chromium.googlesource.com/chromium/src/+/8982f602a8e1f521949d8dd8dae5...
> Review-Url: https://codereview.chromium.org/2819183002
> Cr-Commit-Position: refs/heads/master@{#465812}
> Committed:
https://chromium.googlesource.com/chromium/src/+/7afbb9a64fbd30254a2dab9a6896...

TBR=pfeldman@chromium.org,skyostil@chromium.org,dgozman@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=none
==========

to

==========
Revert of [DevTools] Consolidate overlay-related functionality in Overlay domain
(patchset #6 id:100001 of https://codereview.chromium.org/2819183002/ )

Reason for revert:
This caused a lot of test failures in WebKit Linux Trusty Leak:
https://uberchromegw.corp.google.com/i/chromium.webkit/builders/WebKit%20Linu...
https://uberchromegw.corp.google.com/i/chromium.webkit/builders/WebKit%20Linu...

Original issue's description:
> [DevTools] Consolidate overlay-related functionality in Overlay domain
> 
> This turns InspectorOverlay into InspectorOverlayAgent with respective
> lifetime and domain:
> - rendering domain merges into overlay;
> - Page.configureOverlay moves to overlay;
> - highlighting and inspect mode move from DOM to overlay.
> 
> BUG=none
> TBR=skyostil@chromium.org
> 
> Review-Url: https://codereview.chromium.org/2819183002
> Cr-Original-Commit-Position: refs/heads/master@{#465422}
> Committed:
https://chromium.googlesource.com/chromium/src/+/8982f602a8e1f521949d8dd8dae5...
> Review-Url: https://codereview.chromium.org/2819183002
> Cr-Commit-Position: refs/heads/master@{#465812}
> Committed:
https://chromium.googlesource.com/chromium/src/+/7afbb9a64fbd30254a2dab9a6896...

TBR=pfeldman@chromium.org,skyostil@chromium.org,dgozman@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=none

Review-Url: https://codereview.chromium.org/2827183003
Cr-Commit-Position: refs/heads/master@{#465849}
Committed:
https://chromium.googlesource.com/chromium/src/+/e4c132b04e4a9b43b9d8db37f0ef...
==========

[commit-bot: I haz the power, 2017-04-20 01:35:02]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/e4c132b04e4a9b43b9d8db37f0ef...