profile_changed should not effect GetBestOatFile.

This change moves the check for whether a profile changed from
GetBestOatFile to GetDexOptStatus, because profile_changed should not
effect what oat files are loaded.

Test: OatFileAssistantTest.ProfileOatUpToDate
Change-Id: Iafd12677f20d2844809337d1d83b688f17461cc0
6 files changed