Merge changes Id53c298a,I7df0ece7,I9f41b1a7,Iffbfa408,I2aac0df1, ...

* changes:
  Don't use LoaderManager.getInstance() in dialer.
  Implement PhoneNumberCacheLookup
  Fix add call button behavior.
  Use component for iconography
  Move SpamStub to separate package.
  Initialize dialpadFragment and searchFragment with FragmentManager when MainSearchController is created
  Compress all of dialer's png files.
  Delete unused check__SpamStatus methods
  Refactor simulator menu and add portal package for adding simulator service later.
  Add simulator component in generated root component.
  Update DialerCall to use SpamStatus instead of booleans
  Added contacts permission screen to speed dial fragment.
  Don't crash when cp2 returns a null label.
  Register system call log content observer if user enables Phone permission.
  Exit multiselect mode when opening the dialpad.
  Support missing phone permission in new call log.