Fix media scanner uri handling.
Fix media scanner uri handling.

If a file was originally considered a video file (because it had
a .mp4 extension, for example), but was then discovered to have
only an audio track, it would update the type, but not the URI
for insertion into the media provider.

Change-Id: Ifdf3a177750f1e71ca5a058fa534d272e1505653

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base