Alarm resolution changed to minutes and minimum delay added.
There is a 5 minute minimum delay enforced for released extensions
and a 0 minute delay enforced for extensions in development.
BUG=
122821
TEST=Call chrome.experimental.alarms.create and verify that the alarm is delayed in the number of minutes passed in.
Committed:
http://src.chromium.org/viewvc/chrome?view=rev&revision=135559