Add UseCounters for non-standard, internally unused reflected attributes

Add UseCounters for non-standard, internally unused reflected attributes

http://whatwg.org/html#htmlhtmlelement
http://whatwg.org/html#htmlmetaelement
http://whatwg.org/html#htmlobjectelement
http://whatwg.org/html#htmltablecellelement

None of these attributes are used internally, so the only way sites
can depend on them is via these bindings.

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=179140

[philipj_slow, 2014-07-29 11:44:23]

PTAL

[jochen (gone - plz use gerrit), 2014-07-29 11:49:18]

lgtm

[philipj_slow, 2014-07-29 11:49:54]

The CQ bit was checked by philipj@opera.com

[commit-bot: I haz the power, 2014-07-29 11:50:50]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/philipj@opera.com/428893002/1

[commit-bot: I haz the power, 2014-07-29 12:36:58]

Change committed as 179140

[philipj_slow, 2014-07-30 20:31:35]

Well oops, these are actually in the HTML spec, but the links are missing in the
multipage version:
https://www.w3.org/Bugs/Public/show_bug.cgi?id=26475

[philipj_slow, 2014-07-30 21:35:33]

A revert of this CL has been created in
https://codereview.chromium.org/427353002/ by philipj@opera.com.

The reason for reverting is: These IDL attributes are actually in the HTML spec:
http://www.whatwg.org/specs/web-apps/current-work/#obsolete.