Fixing WebRTC after moving from src/webrtc to src/

In https://webrtc-review.googlesource.com/c/src/+/1560 we moved WebRTC
from src/webrtc to src/ (in order to preserve an healthy git history).
This CL takes care of fixing header guards, #include paths, etc...

NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
TBR=tommi@webrtc.org


Bug: chromium:611808
Change-Id: Iea91618212bee0af16aa3f05071eab8f93706578
Reviewed-on: https://webrtc-review.googlesource.com/1561
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#19846}
diff --git a/pc/rtcstats_integrationtest.cc b/pc/rtcstats_integrationtest.cc
index 7967633..a498dc8 100644
--- a/pc/rtcstats_integrationtest.cc
+++ b/pc/rtcstats_integrationtest.cc
@@ -11,21 +11,21 @@
 #include <set>
 #include <vector>
 
-#include "webrtc/api/audio_codecs/builtin_audio_decoder_factory.h"
-#include "webrtc/api/audio_codecs/builtin_audio_encoder_factory.h"
-#include "webrtc/api/datachannelinterface.h"
-#include "webrtc/api/peerconnectioninterface.h"
-#include "webrtc/api/stats/rtcstats_objects.h"
-#include "webrtc/api/stats/rtcstatsreport.h"
-#include "webrtc/pc/test/peerconnectiontestwrapper.h"
-#include "webrtc/pc/test/rtcstatsobtainer.h"
-#include "webrtc/rtc_base/checks.h"
-#include "webrtc/rtc_base/event_tracer.h"
-#include "webrtc/rtc_base/gunit.h"
-#include "webrtc/rtc_base/refcountedobject.h"
-#include "webrtc/rtc_base/scoped_ref_ptr.h"
-#include "webrtc/rtc_base/trace_event.h"
-#include "webrtc/rtc_base/virtualsocketserver.h"
+#include "api/audio_codecs/builtin_audio_decoder_factory.h"
+#include "api/audio_codecs/builtin_audio_encoder_factory.h"
+#include "api/datachannelinterface.h"
+#include "api/peerconnectioninterface.h"
+#include "api/stats/rtcstats_objects.h"
+#include "api/stats/rtcstatsreport.h"
+#include "pc/test/peerconnectiontestwrapper.h"
+#include "pc/test/rtcstatsobtainer.h"
+#include "rtc_base/checks.h"
+#include "rtc_base/event_tracer.h"
+#include "rtc_base/gunit.h"
+#include "rtc_base/refcountedobject.h"
+#include "rtc_base/scoped_ref_ptr.h"
+#include "rtc_base/trace_event.h"
+#include "rtc_base/virtualsocketserver.h"
 
 namespace webrtc {