Make hbos and hta rtcstats* OWNERS of webrtc/pc, not webrtc/api.

We were already OWNERS of these files, but when these files were moved
from webrtc/api/ to webrtc/pc/ and a new OWNERS file created our
ownership was accidentally not moved.

Becoming per-file=rtcstats* OWNER of webrtc/pc/ which includes:
 rtcstats_integrationtest.cc
 rtcstatscollector.cc
 rtcstatscollector.h
 rtcstatscollector_unittest.cc

Dropping ownership of webrtc/api/ which no longer includes any
rtcstats* files.

Already OWNER of all of webrtc/api/stats/ which includes:
 rtcstats.h
 rtcstats_objects.h
 rtcstatscollectorcallback.h
 rtcstatsreport.h

Already OWNER of all of webrtc/stats/ which includes:
 rtcstats.cc
 rtcstats_objects.cc
 rtcstats_unittest.cc
 rtcstatsreport.cc
 rtcstatsreport_unittest.cc

BUG=webrtc:7060
TBR=hta@webrtc.org, deadbeef@webrtc.org
NOTRY=True

Review-Url: https://codereview.webrtc.org/2726563002
Cr-Original-Commit-Position: refs/heads/master@{#16906}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: 7562fc8adb09aa2fe1a8ca10b1ebf6b3e8beac07
2 files changed