Fix gn gen on //printing when use_sysroot = false

Fix gn gen on //printing when use_sysroot = false

BUG=580103
Committed: https://crrev.com/ed2297175eabde75cb039711658d834777caa53f
Cr-Commit-Position: refs/heads/master@{#374069}

[Adam Goode, 2016-02-05 20:42:09]

agoode@chromium.org changed reviewers:
+ dpapad@chromium.org, zforman@google.com

[dpapad, 2016-02-05 21:33:10]

dpapad@chromium.org changed reviewers:
+ thestig@chromium.org

[dpapad, 2016-02-05 21:33:10]

dpapad@chromium.org changed reviewers:
+ thestig@chromium.org

[dpapad, 2016-02-05 21:33:10]

Adding thestig@ as a reviewer.

[dpapad, 2016-02-05 21:33:11]

Adding thestig@ as a reviewer.

[dpapad, 2016-02-05 21:33:31]

dpapad@chromium.org changed reviewers:
- dpapad@chromium.org

[Lei Zhang, 2016-02-05 23:02:58]

Do you know if there are other places where we need the same fix? I wonder if
rebase_path should be able to take an empty string.

[Lei Zhang, 2016-02-06 00:12:08]

otherwise lgtm

[Zachary Forman, 2016-02-07 20:57:36]

Good catch - thanks for the fix.

[Adam Goode, 2016-02-07 21:28:10]

On 2016/02/05 23:02:58, Lei Zhang wrote:
> Do you know if there are other places where we need the same fix? I wonder if
> rebase_path should be able to take an empty string.

Everything else seems to build ok. I've had to fix bugs with use_sysroot=false
before.

I don't think we need to change rebase_path (yet).

[Adam Goode, 2016-02-07 21:28:41]

The CQ bit was checked by agoode@chromium.org

[commit-bot: I haz the power, 2016-02-07 21:28:54]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1671203002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1671203002/1

[commit-bot: I haz the power, 2016-02-07 22:27:45]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-02-07 22:29:05]

Description was changed from

==========
Fix gn gen on //printing when use_sysroot = false

BUG=580103
==========

to

==========
Fix gn gen on //printing when use_sysroot = false

BUG=580103

Committed: https://crrev.com/ed2297175eabde75cb039711658d834777caa53f
Cr-Commit-Position: refs/heads/master@{#374069}
==========

[commit-bot: I haz the power, 2016-02-07 22:29:06]

Patchset 1 (id:??) landed as
https://crrev.com/ed2297175eabde75cb039711658d834777caa53f
Cr-Commit-Position: refs/heads/master@{#374069}