Make websocket error messages look better at the devtools console.

Source/modules/websockets/WebSocket.cpp

Index: Source/modules/websockets/WebSocket.cpp
diff --git a/Source/modules/websockets/WebSocket.cpp b/Source/modules/websockets/WebSocket.cpp
index 77ad3f144c81cebe4ec97d4f75f2e0efd081bb84..bbc30a9a6970876a61e7031e7deff4405c4f39d4 100644
--- a/Source/modules/websockets/WebSocket.cpp
+++ b/Source/modules/websockets/WebSocket.cpp
@@ -43,6 +43,7 @@
 #include "core/dom/ScriptExecutionContext.h"
 #include "core/fileapi/Blob.h"
 #include "core/inspector/ScriptCallStack.h"
+#include "core/page/ConsoleTypes.h"
 #include "core/page/ContentSecurityPolicy.h"
 #include "core/page/DOMWindow.h"
 #include "core/page/Frame.h"
@@ -392,7 +393,7 @@ void WebSocket::closeInternal(int code, const String& reason, ExceptionCode& ec)
         return;
     if (m_state == CONNECTING) {
         m_state = CLOSING;
-        m_channel->fail("WebSocket is closed before the connection is established.");
+        m_channel->fail("WebSocket is closed before the connection is established.", WarningMessageLevel);
         return;
     }
     m_state = CLOSING;