[chromeos] Make testProfilePreservedBetweenLogins test robust

[chromeos] Make testProfilePreservedBetweenLogins test robust

It often takes a while for chromeos to successfully open a URL and
register it to history. Retry.

BUG=None
TEST=None

R=craigdh@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=152010

[craigdh, 2012-08-17 00:29:49]

https://chromiumcodereview.appspot.com/10829367/diff/1/chrome/test/functional...
File chrome/test/functional/chromeos_login.py (right):

https://chromiumcodereview.appspot.com/10829367/diff/1/chrome/test/functional...
chrome/test/functional/chromeos_login.py:210: self.NavigateToURL(url)
Do you need to navigate every time you try this? Or can you navigate once and
then just wait for the navigation to register?

[Nirnimesh, 2012-08-17 00:39:19]

https://chromiumcodereview.appspot.com/10829367/diff/1/chrome/test/functional...
File chrome/test/functional/chromeos_login.py (right):

https://chromiumcodereview.appspot.com/10829367/diff/1/chrome/test/functional...
chrome/test/functional/chromeos_login.py:210: self.NavigateToURL(url)
On 2012/08/17 00:29:49, craigdh wrote:
> Do you need to navigate every time you try this? Or can you navigate once and
> then just wait for the navigation to register?

Done.

[craigdh, 2012-08-17 00:40:17]

lgtm.