am e62ce17a: Refactoring the logging interface to remove dependence on NPP.

Merge commit 'e62ce17ac9726d6c169d5378db6027b2d8a16fcc' into eclair-mr2-plus-aosp

* commit 'e62ce17ac9726d6c169d5378db6027b2d8a16fcc':
  Refactoring the logging interface to remove dependence on NPP.