But keep #including scoped_ptr.h in .h files, so as not to break
WebRTC users who expect those .h files to give them rtc::scoped_ptr.
BUG=webrtc:5520
Review-Url: https://codereview.webrtc.org/1935893002
Cr-Commit-Position: refs/heads/master@{#12577}
The ARRAY_SIZE macro it defines is not used anymore, as all the usages
were converted to arraysize macro from arraysize.h.
BUG=None
R=tommi@webrtc.org
Review URL: https://codereview.webrtc.org/1443273002
Cr-Commit-Position: refs/heads/master@{#10640}
