am f7f747a0: ContactsProvider2 optimization: two hot spots: parsing query parameters and allocation of Account objects

Merge commit 'f7f747a00f4fa7a9e564507693419a5a8db0eb8f' into eclair-mr2-plus-aosp

* commit 'f7f747a00f4fa7a9e564507693419a5a8db0eb8f':
  ContactsProvider2 optimization: two hot spots: parsing query parameters and allocation of Account objects