Move scoped_ptr.h to rtc_base_approved.
This is more a formality than anything since scoped_ptr.h is already being included from rtc_base_approved code.

BUG=
R=magjed@webrtc.org

Review URL: https://codereview.webrtc.org/1287203007 .

Cr-Commit-Position: refs/heads/master@{#9732}
2 files changed