[DevTools] Capture call stacks for console messages without location.

third_party/WebKit/Source/core/inspector/ConsoleMessage.h

Index: third_party/WebKit/Source/core/inspector/ConsoleMessage.h
diff --git a/third_party/WebKit/Source/core/inspector/ConsoleMessage.h b/third_party/WebKit/Source/core/inspector/ConsoleMessage.h
index a1211ba3020cde4b3058be4eab9ea4ba8ff58350..9458883cef668a3c9fce167beba857e0eef2dab9 100644
--- a/third_party/WebKit/Source/core/inspector/ConsoleMessage.h
+++ b/third_party/WebKit/Source/core/inspector/ConsoleMessage.h
@@ -24,10 +24,18 @@ class WorkerInspectorProxy;
 
 class CORE_EXPORT ConsoleMessage final: public GarbageCollectedFinalized<ConsoleMessage> {
 public:
-    static ConsoleMessage* create(MessageSource source, MessageLevel level, const String& message, const String& url = String(), unsigned lineNumber = 0, unsigned columnNumber = 0)
+    static ConsoleMessage* create(MessageSource source, MessageLevel level, const String& message, const String& url, unsigned lineNumber, unsigned columnNumber = 0)
     {
         return new ConsoleMessage(source, level, message, url, lineNumber, columnNumber);
     }
+
+    static ConsoleMessage* create(MessageSource source, MessageLevel level, const String& message)
+    {
+        ConsoleMessage* consoleMessage = new ConsoleMessage(source, level, message, String(), 0, 0);
+        consoleMessage->collectCallStack();
+        return consoleMessage;
+    }
+
     ~ConsoleMessage();
 
     MessageType type() const;