Clean up generated_bindings.gyp

Clean up generated_bindings.gyp

This does some cleanup to GYP;
only change to build is consolidating two identical gyp-time files into one.

* Move temporary list file variables to the top, with other variables
  (keeps all these lists together, removes duplicate variables, and removes
   duplicate comments)
* Add comment lines between actions (GYP files are hard to read,
  and we're going to add more actions for caching lexer/parser)
* Fix indentation so consistent
(.gyp file formatting isn't terribly consistent or linted,
but this makes reading and edits easier)

BUG=341748
R=haraken

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=168341

[Nils Barth (inactive), 2014-03-03 03:57:47]

Cleanup.

[haraken, 2014-03-03 04:42:42]

LGTM

[Nils Barth (inactive), 2014-03-03 06:12:13]

The CQ bit was checked by nbarth@chromium.org

[commit-bot: I haz the power, 2014-03-03 06:12:19]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/nbarth@chromium.org/181063013/20001

[commit-bot: I haz the power, 2014-03-03 08:53:03]

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

[commit-bot: I haz the power, 2014-03-03 08:53:04]

Retried try job too often on win_layout for step(s) webkit_lint
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_layout...

[Nils Barth (inactive), 2014-03-03 08:57:48]

The CQ bit was checked by nbarth@chromium.org

[commit-bot: I haz the power, 2014-03-03 08:57:54]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/nbarth@chromium.org/181063013/20001

[commit-bot: I haz the power, 2014-03-03 11:46:40]

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

[commit-bot: I haz the power, 2014-03-03 11:46:41]

Retried try job too often on win_layout for step(s) webkit_lint
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_layout...

[Nils Barth (inactive), 2014-03-03 23:44:07]

The CQ bit was checked by nbarth@chromium.org

[commit-bot: I haz the power, 2014-03-03 23:44:26]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/nbarth@chromium.org/181063013/20001

[commit-bot: I haz the power, 2014-03-03 23:45:01]

Change committed as 168341