Remove device light API

Remove device light API

DeviceLightEvent is no longer on track for standardization, which means
it will not ship in Blink.

BUG=711577, 336424

[cco3, 2017-04-15 01:27:28]

cco3@chromium.org changed reviewers:
+ foolip@chromium.org

[cco3, 2017-04-15 01:28:28]

Hi foolip@, I saw the issue you filed.  Is this what you had in mind?

[foolip, 2017-04-17 08:50:38]

foolip@chromium.org changed reviewers:
+ rijubrata.bhaumik@intel.com

[foolip, 2017-04-17 08:50:38]

Adding riju as reviewer also.

[foolip, 2017-04-17 08:50:50]

On 2017/04/15 01:28:28, cco3 wrote:
> Hi foolip@, I saw the issue you filed.  Is this what you had in mind?

Yep, will take a look.

[foolip, 2017-04-17 08:55:59]

lgtm % wpt test, and I'd like riju to sign off on this as well.

https://codereview.chromium.org/2823753002/diff/1/third_party/WebKit/LayoutTe...
File
third_party/WebKit/LayoutTests/external/wpt/dom/nodes/Document-createEvent.html
(left):

https://codereview.chromium.org/2823753002/diff/1/third_party/WebKit/LayoutTe...
third_party/WebKit/LayoutTests/external/wpt/dom/nodes/Document-createEvent.html:84:
"DeviceLightEvent",
Actually it's fine to leave this, this is a list of strings that shouldn't work
with document.createEvent, and at one point it probably did work in Blink,
although behind a flag. The tests will pass anyway.

[cco3, 2017-04-17 16:53:19]

https://codereview.chromium.org/2823753002/diff/1/third_party/WebKit/LayoutTe...
File
third_party/WebKit/LayoutTests/external/wpt/dom/nodes/Document-createEvent.html
(left):

https://codereview.chromium.org/2823753002/diff/1/third_party/WebKit/LayoutTe...
third_party/WebKit/LayoutTests/external/wpt/dom/nodes/Document-createEvent.html:84:
"DeviceLightEvent",
On 2017/04/17 08:55:59, foolip_UTC7 wrote:
> Actually it's fine to leave this, this is a list of strings that shouldn't
work
> with document.createEvent, and at one point it probably did work in Blink,
> although behind a flag. The tests will pass anyway.

Done.

[riju_, 2017-04-19 08:12:40]

This change looks good, but I would wait for some time to get an answer from
Edge and Firefox. From a spec compatibility point of view, this is the right
thing to do.

Also, I think reillyg (cc) is working to make device_light and
device_orientation backend base on Generic Sensor Framework implementation.
https://bugs.chromium.org/p/chromium/issues/detail?id=612322#c28

[foolip, 2017-04-27 08:14:27]

There's a duplicate review at https://codereview.chromium.org/2845763002/ now.
The way to avoid that is to assign bugs to yourself, or to comment with a link
to an ongoing review on the bug. Sorry I didn't notice this myself when I began
poking Edge and Firefox for input.