Merge "Fixed a typo"

/**

 * This is a cache of contact details for the phone numbers in the call log. The key is the

 * phone number with the country in which teh call was placed or received. The content of the

 * phone number with the country in which the call was placed or received. The content of the

 * cache is expired (but not purged) whenever the application comes to the foreground.

 *

 * This cache queues request for information and queries for information on a background thread,