rewrite_to_chrome_style: Make const decisions aware of const variables

rewrite_to_chrome_style: Make const decisions aware of const variables

When a const variable is initialized by another variable, we recurse
to see if that variable is compile-time-const to decide if the former
variable is.

BUG=677285
Review-Url: https://codereview.chromium.org/2624253002
Cr-Commit-Position: refs/heads/master@{#442938}
Committed: https://chromium.googlesource.com/chromium/src/+/ed3c975463926a72676db3793bdbed76926086b0

[danakj, 2017-01-11 16:41:33]

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

[danakj, 2017-01-11 16:41:43]

danakj@chromium.org changed reviewers:
+ dcheng@chromium.org

[commit-bot: I haz the power, 2017-01-11 16:41:54]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-01-11 16:50:40]

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

[commit-bot: I haz the power, 2017-01-11 16:50:41]

Dry run: This issue passed the CQ dry run.

[dcheng, 2017-01-11 17:03:28]

LGTM

[danakj, 2017-01-11 17:09:07]

The CQ bit was checked by danakj@chromium.org

[commit-bot: I haz the power, 2017-01-11 17:09:20]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-01-11 17:14:04]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1484154547250600, "parent_rev":
"8e825d9a15aa6b2d16637fd59d2c0072c60d60ea", "commit_rev":
"ed3c975463926a72676db3793bdbed76926086b0"}

[commit-bot: I haz the power, 2017-01-11 17:14:33]

Description was changed from

==========
rewrite_to_chrome_style: Make const decisions aware of const variables

When a const variable is initialized by another variable, we recurse
to see if that variable is compile-time-const to decide if the former
variable is.

BUG=677285
==========

to

==========
rewrite_to_chrome_style: Make const decisions aware of const variables

When a const variable is initialized by another variable, we recurse
to see if that variable is compile-time-const to decide if the former
variable is.

BUG=677285

Review-Url: https://codereview.chromium.org/2624253002
Cr-Commit-Position: refs/heads/master@{#442938}
Committed:
https://chromium.googlesource.com/chromium/src/+/ed3c975463926a72676db3793bdb...
==========

[commit-bot: I haz the power, 2017-01-11 17:14:35]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/ed3c975463926a72676db3793bdb...