Fixing issue where app icons were not updating with the package.

- This was due to the fact that the cache keys are now CacheKeys instead
  of ComponentNames, which we were still trying to remove.  This is a
  serious issue because it means no app can update their icon while Launcher2
  is running.

Bug: 23030496
Change-Id: I4a59ffe32b8fb2de11a64c173284b4cbf7e35222
2 files changed