DevTools: adopt existing Timeline tests for tracing based Timeline

LayoutTests/http/tests/inspector/tracing/websocket/timeline-websocket-event-expected.txt

Index: LayoutTests/http/tests/inspector/tracing/websocket/timeline-websocket-event-expected.txt
diff --git a/LayoutTests/http/tests/inspector/websocket/timeline-websocket-event-expected.txt b/LayoutTests/http/tests/inspector/tracing/websocket/timeline-websocket-event-expected.txt
similarity index 91%
copy from LayoutTests/http/tests/inspector/websocket/timeline-websocket-event-expected.txt
copy to LayoutTests/http/tests/inspector/tracing/websocket/timeline-websocket-event-expected.txt
index bfde461e546fa57cd108f77417013f3b69142bc9..021613d00a5ab8f4a49ecedc3ab3458b3ff866fd 100644
--- a/LayoutTests/http/tests/inspector/websocket/timeline-websocket-event-expected.txt
+++ b/LayoutTests/http/tests/inspector/tracing/websocket/timeline-websocket-event-expected.txt
@@ -4,6 +4,7 @@ Tests the Timeline events for WebSocket
 WebSocketCreate Properties:
 {
     data : {
+        frame : <string>
         identifier : <number>
         url : ws://127.0.0.1:8880/simple
     }
@@ -17,6 +18,7 @@ WebSocketCreate Properties:
 WebSocketSendHandshakeRequest Properties:
 {
     data : {
+        frame : <string>
         identifier : <number>
     }
     endTime : <number>
@@ -28,6 +30,7 @@ WebSocketSendHandshakeRequest Properties:
 WebSocketReceiveHandshakeResponse Properties:
 {
     data : {
+        frame : <string>
         identifier : <number>
     }
     endTime : <number>
@@ -39,6 +42,7 @@ WebSocketReceiveHandshakeResponse Properties:
 WebSocketDestroy Properties:
 {
     data : {
+        frame : <string>
         identifier : <number>
     }
     endTime : <number>