Use version_info wrapper functions instead of macros.

Use version_info wrapper functions instead of macros.

version_info components provides helper function to access the value of
the PRODUCT_VERSION and IS_OFFICIAL_BUILD macros so use them instead of
the macro directly.

This remove a dependency on a generated header file that should be
private to the version_info component.

BUG=None

Committed: https://crrev.com/0131ca248edfe6c594fa8a6e5780f55c0f4d01eb
Cr-Commit-Position: refs/heads/master@{#351058}

[sdefresne, 2015-09-28 09:15:39]

sdefresne@chromium.org changed reviewers:
+ jochen@chromium.org

[sdefresne, 2015-09-28 09:15:39]

Please take a look.

[jochen (gone - plz use gerrit), 2015-09-28 11:36:50]

lgtm

[sdefresne, 2015-09-28 12:11:51]

The CQ bit was checked by sdefresne@chromium.org

[commit-bot: I haz the power, 2015-09-28 12:11:55]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1373793002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1373793002/1

[commit-bot: I haz the power, 2015-09-28 12:16:26]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-09-28 12:17:16]

Patchset 1 (id:??) landed as
https://crrev.com/0131ca248edfe6c594fa8a6e5780f55c0f4d01eb
Cr-Commit-Position: refs/heads/master@{#351058}