Update includes for webrtc/{base => rtc_base} rename (3/3)

I used a command like this to update the paths:
perl -pi -e "s/webrtc\/base/webrtc\/rtc_base/g" `find webrtc/rtc_base -name "*.cc" -o -name "*.h"`

BUG=webrtc:7634
NOTRY=True
NOPRESUBMIT=True
TBR=kwiberg@webrtc.org

Review-Url: https://codereview.webrtc.org/2963273002
Cr-Commit-Position: refs/heads/master@{#18856}
diff --git a/webrtc/rtc_base/swap_queue.h b/webrtc/rtc_base/swap_queue.h
index 8c65278..3519686 100644
--- a/webrtc/rtc_base/swap_queue.h
+++ b/webrtc/rtc_base/swap_queue.h
@@ -15,9 +15,9 @@
 #include <utility>
 #include <vector>
 
-#include "webrtc/base/checks.h"
-#include "webrtc/base/constructormagic.h"
-#include "webrtc/base/criticalsection.h"
+#include "webrtc/rtc_base/checks.h"
+#include "webrtc/rtc_base/constructormagic.h"
+#include "webrtc/rtc_base/criticalsection.h"
 
 namespace webrtc {