Replace EventWrapper in video/, test/ and call/.

webrtc/test/direct_transport.h

Index: webrtc/test/direct_transport.h
diff --git a/webrtc/test/direct_transport.h b/webrtc/test/direct_transport.h
index d4c19b6bbbd85eb420d7d17a398db323a3a94a8e..444ab26fcb052387c2445e1b0c1a1bda360ba54d 100644
--- a/webrtc/test/direct_transport.h
+++ b/webrtc/test/direct_transport.h
@@ -15,9 +15,9 @@
 #include <deque>
 
 #include "webrtc/base/criticalsection.h"
+#include "webrtc/base/event.h"
 #include "webrtc/base/platform_thread.h"
 #include "webrtc/base/scoped_ptr.h"
-#include "webrtc/system_wrappers/include/event_wrapper.h"
 #include "webrtc/test/fake_network_pipe.h"
 #include "webrtc/transport.h"
 
@@ -52,7 +52,7 @@ class DirectTransport : public Transport {
 
   rtc::CriticalSection lock_;
   Call* const send_call_;
-  rtc::scoped_ptr<EventWrapper> packet_event_;
+  rtc::Event packet_event_;
   rtc::PlatformThread thread_;
   Clock* const clock_;