Revert of Make click targets inside links work.

Revert of Make click targets inside links work. (patchset #1 id:1 of https://codereview.chromium.org/2030413002/ )

Reason for revert:
Failing on Mac 10.11 (dbg): https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Mac10.11%20%28dbg%29/builds/2237

Error message is:

Harness Error. harness_status.status = 2 , harness_status.message = null

Sorry to revert this again. :(

Original issue's description:
> Make click targets inside links work.
>
> There are pages that attach click handlers to elements that are found inside links, and screen readers might try to click such elements. Our existing doDefaultAction logic wasn't handling this possibility.
> For example, there might be a graphic inside a link and the screen reader might invoke the default action on the graphic.
> BUG=615904
> TBR=dmazzoni@chromium.org
>
> Committed: https://crrev.com/f491eb9a53ed36e90ab45c943a0e52247ec00da5
> Cr-Commit-Position: refs/heads/master@{#397760}

TBR=dmazzoni@chromium.org,nektar@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=615904
Committed: https://crrev.com/4904fc8910dc86a23596f7a9e39960ad2635a37b
Cr-Commit-Position: refs/heads/master@{#397782}

[jbroman, 2016-06-03 19:54:46]

The CQ bit was checked by jbroman@chromium.org

[jbroman, 2016-06-03 19:54:47]

Created Revert of Make click targets inside links work.

[commit-bot: I haz the power, 2016-06-03 19:55:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2036943003/1

[commit-bot: I haz the power, 2016-06-03 19:55:57]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-03 19:57:07]

Description was changed from

==========
Revert of Make click targets inside links work. (patchset #1 id:1 of
https://codereview.chromium.org/2030413002/ )

Reason for revert:
Failing on Mac 10.11 (dbg):
https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Mac10.11%20%28...

Error message is:

Harness Error. harness_status.status = 2 , harness_status.message = null

Sorry to revert this again. :(

Original issue's description:
> Make click targets inside links work.
> 
> There are pages that attach click handlers to elements that are found inside
links, and screen readers might try to click such elements. Our existing
doDefaultAction logic wasn't handling this possibility.
> For example, there might be a graphic inside a link and the screen reader
might invoke the default action on the graphic.
> BUG=615904
> TBR=dmazzoni@chromium.org
> 
> Committed: https://crrev.com/f491eb9a53ed36e90ab45c943a0e52247ec00da5
> Cr-Commit-Position: refs/heads/master@{#397760}

TBR=dmazzoni@chromium.org,nektar@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=615904
==========

to

==========
Revert of Make click targets inside links work. (patchset #1 id:1 of
https://codereview.chromium.org/2030413002/ )

Reason for revert:
Failing on Mac 10.11 (dbg):
https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Mac10.11%20%28...

Error message is:

Harness Error. harness_status.status = 2 , harness_status.message = null

Sorry to revert this again. :(

Original issue's description:
> Make click targets inside links work.
>
> There are pages that attach click handlers to elements that are found inside
links, and screen readers might try to click such elements. Our existing
doDefaultAction logic wasn't handling this possibility.
> For example, there might be a graphic inside a link and the screen reader
might invoke the default action on the graphic.
> BUG=615904
> TBR=dmazzoni@chromium.org
>
> Committed: https://crrev.com/f491eb9a53ed36e90ab45c943a0e52247ec00da5
> Cr-Commit-Position: refs/heads/master@{#397760}

TBR=dmazzoni@chromium.org,nektar@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=615904

Committed: https://crrev.com/4904fc8910dc86a23596f7a9e39960ad2635a37b
Cr-Commit-Position: refs/heads/master@{#397782}
==========

[commit-bot: I haz the power, 2016-06-03 19:57:08]

Patchset 1 (id:??) landed as
https://crrev.com/4904fc8910dc86a23596f7a9e39960ad2635a37b
Cr-Commit-Position: refs/heads/master@{#397782}