Reland of Make EventHandlerRegistry store Page instead of FrameHost

Reland of Make EventHandlerRegistry store Page instead of FrameHost (patchset #1 id:1 of https://codereview.chromium.org/2737863005/ )

Reason for revert:
Patch unrelated to test failure; trying to revert-revert

Original issue's description:
> 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

TBR=joelhockey@chromium.org,petermayo@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/2742543002
Cr-Commit-Position: refs/heads/master@{#455575}
Committed: https://chromium.googlesource.com/chromium/src/+/6fe37909237df848564e70b749eac2a3a8e32b95

[sashab, 2017-03-08 22:58:42]

The CQ bit was checked by sashab@chromium.org

[sashab, 2017-03-08 22:58:42]

Created Reland of Make EventHandlerRegistry store Page instead of FrameHost

[commit-bot: I haz the power, 2017-03-08 22:59:25]

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 23:00:21]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1489013922032640, "parent_rev":
"d6234406958a28d55dab50e42137b6c32851451e", "commit_rev":
"6fe37909237df848564e70b749eac2a3a8e32b95"}

[commit-bot: I haz the power, 2017-03-08 23:01:01]

Description was changed from

==========
Reland of Make EventHandlerRegistry store Page instead of FrameHost (patchset #1
id:1 of https://codereview.chromium.org/2737863005/ )

Reason for revert:
Patch unrelated to test failure; trying to revert-revert

Original issue's description:
> 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...

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

to

==========
Reland of Make EventHandlerRegistry store Page instead of FrameHost (patchset #1
id:1 of https://codereview.chromium.org/2737863005/ )

Reason for revert:
Patch unrelated to test failure; trying to revert-revert

Original issue's description:
> 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...

TBR=joelhockey@chromium.org,petermayo@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/2742543002
Cr-Commit-Position: refs/heads/master@{#455575}
Committed:
https://chromium.googlesource.com/chromium/src/+/6fe37909237df848564e70b749ea...
==========

[commit-bot: I haz the power, 2017-03-08 23:01:03]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/6fe37909237df848564e70b749ea...

[haraken, 2017-03-09 08:05:15]

LGTM