Add more GURLTest.Resolve examples for clarity.

Add more GURLTest.Resolve examples for clarity.

I was confused about how this worked when writing
http://crrev.com/864993002 and none of the existing
examples clarified it. Is there a utility method that will
just always append to the path? like "a.com/b" and "c"
makes "a.com/b/c"?

Committed: https://crrev.com/ac0afb8657e49b1f792bd19d6f0acf805c28f49a
Cr-Commit-Position: refs/heads/master@{#313216}

[maxbogue, 2015-01-26 19:42:08]

maxbogue@chromium.org changed reviewers:
+ abarth@chromium.org

[abarth-chromium, 2015-01-27 01:28:51]

lgtm

[maxbogue, 2015-01-27 03:07:07]

The CQ bit was checked by maxbogue@chromium.org

[commit-bot: I haz the power, 2015-01-27 03:08:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/870413005/1

[commit-bot: I haz the power, 2015-01-27 03:11:20]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-01-27 03:12:37]

Patchset 1 (id:??) landed as
https://crrev.com/ac0afb8657e49b1f792bd19d6f0acf805c28f49a
Cr-Commit-Position: refs/heads/master@{#313216}