Revert of Make EventHandlerRegistry store Page instead of FrameHost

Revert of Make EventHandlerRegistry store Page instead of FrameHost (patchset #1 id:1 of https://codereview.chromium.org/2736753003/ )

Reason for revert:
virtual/gpu-rasterization/images/cross-fade-background-size.html failed after this change.

No idea why, perhaps it is too sensitive, or needs a concurrent rebaseline.

Tracked in bug 699573

Original issue's description:
> Make EventHandlerRegistry store Page instead of FrameHost
> 
> This is pre-work to move FrameHost::m_eventHandlerRegistry to Page. Also
> renamed didMove{Into,OutOf}FrameHost to didMove{Into,OutOf}Page, which
> now makes more sense.
> 
> BUG=691794
> 
> Review-Url: https://codereview.chromium.org/2736753003
> Cr-Commit-Position: refs/heads/master@{#455379}
> Committed: https://chromium.googlesource.com/chromium/src/+/5c4056a61c3d24b5df4ebdba406467b96ff68866

TBR=joelhockey@chromium.org,sashab@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=691794
Review-Url: https://codereview.chromium.org/2737863005
Cr-Commit-Position: refs/heads/master@{#455462}
Committed: https://chromium.googlesource.com/chromium/src/+/c5a5f183a349f0088685acc2a063f9b84e9ec237

[Peter Mayo, 2017-03-08 16:04:49]

The CQ bit was checked by petermayo@chromium.org

[Peter Mayo, 2017-03-08 16:04:50]

Created Revert of Make EventHandlerRegistry store Page instead of FrameHost

[commit-bot: I haz the power, 2017-03-08 16:05:14]

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, 2017-03-08 16:05:53]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1488989089410780, "parent_rev":
"e0a2b72f366de4cd1cdf59882f5254428d35c688", "commit_rev":
"c5a5f183a349f0088685acc2a063f9b84e9ec237"}

[commit-bot: I haz the power, 2017-03-08 16:06:31]

Description was changed from

==========
Revert of Make EventHandlerRegistry store Page instead of FrameHost (patchset #1
id:1 of https://codereview.chromium.org/2736753003/ )

Reason for revert:
virtual/gpu-rasterization/images/cross-fade-background-size.html failed after
this change.

No idea why, perhaps it is too sensitive, or needs a concurrent rebaseline.

Tracked in bug 699573

Original issue's description:
> Make EventHandlerRegistry store Page instead of FrameHost
> 
> This is pre-work to move FrameHost::m_eventHandlerRegistry to Page. Also
> renamed didMove{Into,OutOf}FrameHost to didMove{Into,OutOf}Page, which
> now makes more sense.
> 
> BUG=691794
> 
> Review-Url: https://codereview.chromium.org/2736753003
> Cr-Commit-Position: refs/heads/master@{#455379}
> Committed:
https://chromium.googlesource.com/chromium/src/+/5c4056a61c3d24b5df4ebdba4064...

TBR=joelhockey@chromium.org,sashab@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=691794
==========

to

==========
Revert of Make EventHandlerRegistry store Page instead of FrameHost (patchset #1
id:1 of https://codereview.chromium.org/2736753003/ )

Reason for revert:
virtual/gpu-rasterization/images/cross-fade-background-size.html failed after
this change.

No idea why, perhaps it is too sensitive, or needs a concurrent rebaseline.

Tracked in bug 699573

Original issue's description:
> Make EventHandlerRegistry store Page instead of FrameHost
> 
> This is pre-work to move FrameHost::m_eventHandlerRegistry to Page. Also
> renamed didMove{Into,OutOf}FrameHost to didMove{Into,OutOf}Page, which
> now makes more sense.
> 
> BUG=691794
> 
> Review-Url: https://codereview.chromium.org/2736753003
> Cr-Commit-Position: refs/heads/master@{#455379}
> Committed:
https://chromium.googlesource.com/chromium/src/+/5c4056a61c3d24b5df4ebdba4064...

TBR=joelhockey@chromium.org,sashab@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=691794

Review-Url: https://codereview.chromium.org/2737863005
Cr-Commit-Position: refs/heads/master@{#455462}
Committed:
https://chromium.googlesource.com/chromium/src/+/c5a5f183a349f0088685acc2a063...
==========

[commit-bot: I haz the power, 2017-03-08 16:06:32]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/c5a5f183a349f0088685acc2a063...

[haraken, 2017-03-08 17:30:58]

I don't think the CL is related though.

[sashab, 2017-03-08 22:58:41]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/2742543002/ by sashab@chromium.org.

The reason for reverting is: Patch unrelated to test failure; trying to
revert-revert.