Restoring recently deleted unit tests.

Some unit tests were deleted during switching from merging to combining. Restoring them.
Other changes:
1. Switching server response parameter from string to a typed one in parseAndShowNotificationCards(). This way tests don’t have to stringify this parameter before passing to the tested function.
2. Changes in cards.js to match ‘actionUrls’ field definitions in annotation types. They can’t be null.

BUG=164227
TEST=No

Review URL: https://codereview.chromium.org/121983002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244624 0039d316-1c4b-4281-b951-d872f2087c98
4 files changed