Upstream the grammer for union types to idl_parser

Upstream the grammer for union types to idl_parser

There is no reason to put it in blink_idl_parser.py

BUG=617899
Committed: https://crrev.com/993ba2de09730a067a60b963b4b04652784b51d7
Cr-Commit-Position: refs/heads/master@{#398297}

[bashi, 2016-06-07 09:43:03]

The CQ bit was checked by bashi@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-06-07 09:43:20]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2048613002/1

[bashi, 2016-06-07 09:50:51]

bashi@chromium.org changed reviewers:
+ haraken@chromium.org, yukishiino@chromium.org

[bashi, 2016-06-07 09:50:51]

PTAL?

[haraken, 2016-06-07 10:42:35]

LGTM

[commit-bot: I haz the power, 2016-06-07 11:18:31]

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

[commit-bot: I haz the power, 2016-06-07 11:18:32]

Dry run: Try jobs failed on following builders:
  mac_chromium_rel_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_...)

[Yuki, 2016-06-07 12:39:24]

lgtm

[bashi, 2016-06-07 12:57:40]

The CQ bit was checked by bashi@chromium.org

[commit-bot: I haz the power, 2016-06-07 12:57:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2048613002/1

[commit-bot: I haz the power, 2016-06-07 14:34:06]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-07 14:35:45]

Description was changed from

==========
Upstream the grammer for union types to idl_parser

There is no reason to put it in blink_idl_parser.py

BUG=617899
==========

to

==========
Upstream the grammer for union types to idl_parser

There is no reason to put it in blink_idl_parser.py

BUG=617899

Committed: https://crrev.com/993ba2de09730a067a60b963b4b04652784b51d7
Cr-Commit-Position: refs/heads/master@{#398297}
==========

[commit-bot: I haz the power, 2016-06-07 14:35:46]

Patchset 1 (id:??) landed as
https://crrev.com/993ba2de09730a067a60b963b4b04652784b51d7
Cr-Commit-Position: refs/heads/master@{#398297}