Adds AL logging for Blink core events.

Source/core/html/HTMLIFrameElement.cpp

Index: Source/core/html/HTMLIFrameElement.cpp
diff --git a/Source/core/html/HTMLIFrameElement.cpp b/Source/core/html/HTMLIFrameElement.cpp
index b447e52765ac880b28b64b3b06ab87e34c7fda09..87151b26e4790e9c22ff8e66f50a20c2d98ac4ce 100644
--- a/Source/core/html/HTMLIFrameElement.cpp
+++ b/Source/core/html/HTMLIFrameElement.cpp
@@ -25,6 +25,7 @@
 #include "config.h"
 #include "core/html/HTMLIFrameElement.h"
 
+#include "bindings/v8/V8DOMActivityLogger.h"
 #include "core/CSSPropertyNames.h"
 #include "core/HTMLNames.h"
 #include "core/html/HTMLDocument.h"
@@ -100,6 +101,15 @@ RenderObject* HTMLIFrameElement::createRenderer(RenderStyle*)
 
 Node::InsertionNotificationRequest HTMLIFrameElement::insertedInto(ContainerNode* insertionPoint)
 {
+    if (insertionPoint->isInTreeScope()) {
+        V8DOMActivityLogger* activityLogger = V8DOMActivityLogger::currentActivityLoggerIfIsolatedWorld();
+        if (activityLogger) {
+            Vector<String> argv;
+            argv.append("iframe");
+            argv.append(fastGetAttribute(srcAttr));
+            activityLogger->logEvent("blinkAddElement", 2, argv.data());
+        }
+    }
     InsertionNotificationRequest result = HTMLFrameElementBase::insertedInto(insertionPoint);
     if (insertionPoint->inDocument() && document().isHTMLDocument() && !insertionPoint->isInShadowTree())
         toHTMLDocument(document()).addExtraNamedItem(m_name);