Introduce SourceLocation to be used for console messages.

third_party/WebKit/Source/core/dom/Document.cpp

Index: third_party/WebKit/Source/core/dom/Document.cpp
diff --git a/third_party/WebKit/Source/core/dom/Document.cpp b/third_party/WebKit/Source/core/dom/Document.cpp
index 8da90c1d1f2c9f6a4735dac439f5f8165d4cc7b0..ce4b58fa5cf65bf0cd8fcaa93d51a5691fedf19b 100644
--- a/third_party/WebKit/Source/core/dom/Document.cpp
+++ b/third_party/WebKit/Source/core/dom/Document.cpp
@@ -5213,7 +5213,7 @@ void Document::addConsoleMessage(ConsoleMessage* consoleMessage)
             if (parser->isParsingAtLineNumber())
                 lineNumber = parser->lineNumber().oneBasedInt();
         }
-        consoleMessage = ConsoleMessage::create(consoleMessage->source(), consoleMessage->level(), consoleMessage->message(), url().getString(), lineNumber, 0, consoleMessage->callStack(), 0, consoleMessage->scriptArguments());
+        consoleMessage = ConsoleMessage::create(consoleMessage->source(), consoleMessage->level(), consoleMessage->message(), url().getString(), lineNumber, 0, consoleMessage->stackTrace() ? consoleMessage->stackTrace()->clone() : nullptr, 0, consoleMessage->scriptArguments());
     }
     m_frame->console().addMessage(consoleMessage);
 }