Deprecate invoking the default action for untrusted events.

Deprecate invoking the default action for untrusted events.

Add deprecation for dispatching untrusted events.

Intent to deprecate: https://groups.google.com/a/chromium.org/d/msg/blink-dev/OzHI2c2vkEo/9Bz-j4PhBAAJ
Chrome status: https://www.chromestatus.com/features/5718803933560832

BUG=520519
Committed: https://crrev.com/d3b017a82b0f7efa12a1919bf073466978f3fb62
Cr-Commit-Position: refs/heads/master@{#394479}

[dtapuska, 2016-05-17 17:04:11]

Description was changed from

==========
Deprecate invoking the default action for untrusted events.

Add deprecation for dispatching untrusted events.

Intent to deprecate:
https://groups.google.com/a/chromium.org/d/msg/blink-dev/OzHI2c2vkEo/9Bz-j4Ph...
Chrome status: https://www.chromestatus.com/features/5718803933560832

BUG=520519
==========

to

==========
Deprecate invoking the default action for untrusted events.

Add deprecation for dispatching untrusted events.

Intent to deprecate:
https://groups.google.com/a/chromium.org/d/msg/blink-dev/OzHI2c2vkEo/9Bz-j4Ph...
Chrome status: https://www.chromestatus.com/features/5718803933560832

BUG=520519
==========

[dtapuska, 2016-05-17 17:04:11]

dtapuska@chromium.org changed reviewers:
+ isherman@chromium.org, rbyers@chromium.org, tkent@chromium.org

[Rick Byers, 2016-05-17 17:34:29]

lgtm with nit around warning

I also tweaked the chromestatus entry a bit (eg. linked to history from MS
showing their support, mentioned that it's already shipping in Firefox, updated
spec link to the evergreen version).

https://codereview.chromium.org/1989463002/diff/1/third_party/WebKit/Source/c...
File third_party/WebKit/Source/core/frame/Deprecation.cpp (right):

https://codereview.chromium.org/1989463002/diff/1/third_party/WebKit/Source/c...
third_party/WebKit/Source/core/frame/Deprecation.cpp:392: return
willBeRemoved("Performing default actions on untrusted events", 53,
"5718803933560832");
I'm a little worried that developers may see this even when they're doing
nothing wrong (eg. there happens to be a default action as a side effect of an
event they're generating but they don't rely on it).  How about changing the
wording to something like this:

"A DOM event generated from JavaScript has triggered a default action inside the
browser.  This behavior is non-standard and will be removed in M53.  See ...".?

[Ilya Sherman, 2016-05-17 18:18:15]

histograms.xml lgtm

[dtapuska, 2016-05-17 19:32:42]

https://codereview.chromium.org/1989463002/diff/1/third_party/WebKit/Source/c...
File third_party/WebKit/Source/core/frame/Deprecation.cpp (right):

https://codereview.chromium.org/1989463002/diff/1/third_party/WebKit/Source/c...
third_party/WebKit/Source/core/frame/Deprecation.cpp:392: return
willBeRemoved("Performing default actions on untrusted events", 53,
"5718803933560832");
On 2016/05/17 17:34:28, Rick Byers wrote:
> I'm a little worried that developers may see this even when they're doing
> nothing wrong (eg. there happens to be a default action as a side effect of an
> event they're generating but they don't rely on it).  How about changing the
> wording to something like this:
> 
> "A DOM event generated from JavaScript has triggered a default action inside
the
> browser.  This behavior is non-standard and will be removed in M53.  See
...".?

Done.

[dtapuska, 2016-05-18 13:40:42]

The CQ bit was checked by dtapuska@chromium.org

[dtapuska, 2016-05-18 13:40:43]

The patchset sent to the CQ was uploaded after l-g-t-m from
isherman@chromium.org, rbyers@chromium.org
Link to the patchset: https://codereview.chromium.org/1989463002/#ps40001
(title: "Adjust deprecation message")

[commit-bot: I haz the power, 2016-05-18 13:40:58]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1989463002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1989463002/40001

[commit-bot: I haz the power, 2016-05-18 13:42:57]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-05-18 13:42:59]

Try jobs failed on following builders:
  ios-device-gn on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios-device-gn/bui...)
  ios-simulator on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios-simulator/bui...)
  ios-simulator-gn on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios-simulator-gn/...)

[dtapuska, 2016-05-18 16:14:42]

The CQ bit was checked by dtapuska@chromium.org

[dtapuska, 2016-05-18 16:14:43]

The patchset sent to the CQ was uploaded after l-g-t-m from
isherman@chromium.org, rbyers@chromium.org
Link to the patchset: https://codereview.chromium.org/1989463002/#ps60001
(title: "Rebase")

[commit-bot: I haz the power, 2016-05-18 16:14:56]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1989463002/60001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1989463002/60001

[commit-bot: I haz the power, 2016-05-18 18:38:01]

Description was changed from

==========
Deprecate invoking the default action for untrusted events.

Add deprecation for dispatching untrusted events.

Intent to deprecate:
https://groups.google.com/a/chromium.org/d/msg/blink-dev/OzHI2c2vkEo/9Bz-j4Ph...
Chrome status: https://www.chromestatus.com/features/5718803933560832

BUG=520519
==========

to

==========
Deprecate invoking the default action for untrusted events.

Add deprecation for dispatching untrusted events.

Intent to deprecate:
https://groups.google.com/a/chromium.org/d/msg/blink-dev/OzHI2c2vkEo/9Bz-j4Ph...
Chrome status: https://www.chromestatus.com/features/5718803933560832

BUG=520519
==========

[commit-bot: I haz the power, 2016-05-18 18:38:02]

Committed patchset #4 (id:60001)

[commit-bot: I haz the power, 2016-05-18 18:39:32]

Description was changed from

==========
Deprecate invoking the default action for untrusted events.

Add deprecation for dispatching untrusted events.

Intent to deprecate:
https://groups.google.com/a/chromium.org/d/msg/blink-dev/OzHI2c2vkEo/9Bz-j4Ph...
Chrome status: https://www.chromestatus.com/features/5718803933560832

BUG=520519
==========

to

==========
Deprecate invoking the default action for untrusted events.

Add deprecation for dispatching untrusted events.

Intent to deprecate:
https://groups.google.com/a/chromium.org/d/msg/blink-dev/OzHI2c2vkEo/9Bz-j4Ph...
Chrome status: https://www.chromestatus.com/features/5718803933560832

BUG=520519

Committed: https://crrev.com/d3b017a82b0f7efa12a1919bf073466978f3fb62
Cr-Commit-Position: refs/heads/master@{#394479}
==========

[commit-bot: I haz the power, 2016-05-18 18:39:34]

Patchset 4 (id:??) landed as
https://crrev.com/d3b017a82b0f7efa12a1919bf073466978f3fb62
Cr-Commit-Position: refs/heads/master@{#394479}