Revert of Refactor Select-to-speak so that mouse events are forwarded to the extension.

Revert of Refactor Select-to-speak so that mouse events are forwarded to the extension. (patchset #7 id:120001 of https://codereview.chromium.org/2814213002/ )

Reason for revert:
FindIt detected this CL as culprit for test failures. 
https://findit-for-me.appspot.com/waterfall/build-failure?url=https://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%20Tests%20%28dbg%29%281%29/builds/26122

Original issue's description:
> Refactor Select-to-speak so that mouse events are forwarded to the extension.
> 
> Previously the Select-to-speak event handler captured mouse events and
> turned them into accessibility events that could be caught by
> select-to-speak.
> 
> Instead, the event handler can mouse and keyboard events to the extension
> background page, and the extension can use the automation API to do a hit test.
> 
> This is mostly a refactoring change, but it gives us some more flexibility
> and makes the event handler simpler, possibly something that could be
> general-purpose, while putting more of the logic into the extension code.
> 
> BUG=699617
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation
> 
> Review-Url: https://codereview.chromium.org/2814213002
> Cr-Commit-Position: refs/heads/master@{#472339}
> Committed: https://chromium.googlesource.com/chromium/src/+/ccb40f537fbbc17772e7255a7b575661ce4353cd

TBR=dtseng@chromium.org,dmazzoni@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=699617
Review-Url: https://codereview.chromium.org/2883283003
Cr-Commit-Position: refs/heads/master@{#472397}
Committed: https://chromium.googlesource.com/chromium/src/+/3baeba114a6669b0a2c02842cfa10bb293e5c57e

[kolos1, 2017-05-17 09:32:42]

The CQ bit was checked by kolos@chromium.org

[kolos1, 2017-05-17 09:32:42]

Created Revert of Refactor Select-to-speak so that mouse events are forwarded to
the extension.

[commit-bot: I haz the power, 2017-05-17 09:33:03]

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, 2017-05-17 09:33:36]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1495013562301020, "parent_rev":
"b3a11019e6709be450e8dc92130e53920c0e5717", "commit_rev":
"3baeba114a6669b0a2c02842cfa10bb293e5c57e"}

[commit-bot: I haz the power, 2017-05-17 09:33:52]

Description was changed from

==========
Revert of Refactor Select-to-speak so that mouse events are forwarded to the
extension. (patchset #7 id:120001 of https://codereview.chromium.org/2814213002/
)

Reason for revert:
FindIt detected this CL as culprit for test failures. 
https://findit-for-me.appspot.com/waterfall/build-failure?url=https://build.c...

Original issue's description:
> Refactor Select-to-speak so that mouse events are forwarded to the extension.
> 
> Previously the Select-to-speak event handler captured mouse events and
> turned them into accessibility events that could be caught by
> select-to-speak.
> 
> Instead, the event handler can mouse and keyboard events to the extension
> background page, and the extension can use the automation API to do a hit
test.
> 
> This is mostly a refactoring change, but it gives us some more flexibility
> and makes the event handler simpler, possibly something that could be
> general-purpose, while putting more of the logic into the extension code.
> 
> BUG=699617
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation
> 
> Review-Url: https://codereview.chromium.org/2814213002
> Cr-Commit-Position: refs/heads/master@{#472339}
> Committed:
https://chromium.googlesource.com/chromium/src/+/ccb40f537fbbc17772e7255a7b57...

TBR=dtseng@chromium.org,dmazzoni@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=699617
==========

to

==========
Revert of Refactor Select-to-speak so that mouse events are forwarded to the
extension. (patchset #7 id:120001 of https://codereview.chromium.org/2814213002/
)

Reason for revert:
FindIt detected this CL as culprit for test failures. 
https://findit-for-me.appspot.com/waterfall/build-failure?url=https://build.c...

Original issue's description:
> Refactor Select-to-speak so that mouse events are forwarded to the extension.
> 
> Previously the Select-to-speak event handler captured mouse events and
> turned them into accessibility events that could be caught by
> select-to-speak.
> 
> Instead, the event handler can mouse and keyboard events to the extension
> background page, and the extension can use the automation API to do a hit
test.
> 
> This is mostly a refactoring change, but it gives us some more flexibility
> and makes the event handler simpler, possibly something that could be
> general-purpose, while putting more of the logic into the extension code.
> 
> BUG=699617
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation
> 
> Review-Url: https://codereview.chromium.org/2814213002
> Cr-Commit-Position: refs/heads/master@{#472339}
> Committed:
https://chromium.googlesource.com/chromium/src/+/ccb40f537fbbc17772e7255a7b57...

TBR=dtseng@chromium.org,dmazzoni@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=699617

Review-Url: https://codereview.chromium.org/2883283003
Cr-Commit-Position: refs/heads/master@{#472397}
Committed:
https://chromium.googlesource.com/chromium/src/+/3baeba114a6669b0a2c02842cfa1...
==========

[commit-bot: I haz the power, 2017-05-17 09:33:53]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/3baeba114a6669b0a2c02842cfa1...