Merge 142594

Source/WebCore/inspector/InspectorConsoleAgent.cpp

Index: Source/WebCore/inspector/InspectorConsoleAgent.cpp
===================================================================
--- Source/WebCore/inspector/InspectorConsoleAgent.cpp	(revision 143458)
+++ Source/WebCore/inspector/InspectorConsoleAgent.cpp	(working copy)
@@ -188,7 +188,8 @@
         clearMessages(&error);
     }
 
-    addConsoleMessage(adoptPtr(new ConsoleMessage(!isWorkerAgent(), source, type, level, message, scriptId, lineNumber, state, requestIdentifier)));
+    bool canGenerateCallStack = !isWorkerAgent() && m_frontend;
+    addConsoleMessage(adoptPtr(new ConsoleMessage(canGenerateCallStack, source, type, level, message, scriptId, lineNumber, state, requestIdentifier)));
 }
 
 Vector<unsigned> InspectorConsoleAgent::consoleMessageArgumentCounts()