Use getAttribute in path animation tests

Use getAttribute in path animation tests

Use getAttribute('d') and exact string matching instead of using
animatedPathSegList. The base value checks are dropped. In some cases
relative close commands ('z') are replaced with absolute ones ('Z').

BUG=539385
Committed: https://crrev.com/67b6d3880936936177eab618d3f5ee53c65709c3
Cr-Commit-Position: refs/heads/master@{#355119}

[fs, 2015-10-20 17:19:00]

fs@opera.com changed reviewers:
+ pdr@chromium.org

[pdr., 2015-10-20 18:34:45]

On 2015/10/20 at 17:19:01, fs wrote:
> 

LGTM, I guess relative closepath is about equal to absolute closepath :)

[fs, 2015-10-20 18:40:38]

On 2015/10/20 at 18:34:45, pdr wrote:
> On 2015/10/20 at 17:19:01, fs wrote:
> > 
> 
> LGTM, I guess relative closepath is about equal to absolute closepath :)

Yepp, and with the old structure it was even impossible to observe that there
would've been/was a difference - soon a thing of the past that though =)

[fs, 2015-10-20 18:40:46]

The CQ bit was checked by fs@opera.com

[commit-bot: I haz the power, 2015-10-20 18:41:35]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1417593003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1417593003/1

[commit-bot: I haz the power, 2015-10-20 18:54:32]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-10-20 18:55:41]

Patchset 1 (id:??) landed as
https://crrev.com/67b6d3880936936177eab618d3f5ee53c65709c3
Cr-Commit-Position: refs/heads/master@{#355119}