Revert of Refactoring activity logger.

Source/core/html/HTMLAnchorElement.cpp

Index: Source/core/html/HTMLAnchorElement.cpp
diff --git a/Source/core/html/HTMLAnchorElement.cpp b/Source/core/html/HTMLAnchorElement.cpp
index e94d808541d61fff5b1c7bd9f82ff5da1c61e957..1c19c49c77136e3a3b0c0e55d0b59aea8579a2c0 100644
--- a/Source/core/html/HTMLAnchorElement.cpp
+++ b/Source/core/html/HTMLAnchorElement.cpp
@@ -160,22 +160,6 @@
     ContainerNode::setActive(down);
 }
 
-void HTMLAnchorElement::attributeWillChange(const QualifiedName& name, const AtomicString& oldValue, const AtomicString& newValue)
-{
-    if (name == hrefAttr && inDocument()) {
-        V8DOMActivityLogger* activityLogger = V8DOMActivityLogger::currentActivityLoggerIfIsolatedWorld();
-        if (activityLogger) {
-            Vector<String> argv;
-            argv.append("a");
-            argv.append(hrefAttr.toString());
-            argv.append(oldValue);
-            argv.append(newValue);
-            activityLogger->logEvent("blinkSetAttribute", argv.size(), argv.data());
-        }
-    }
-    HTMLElement::attributeWillChange(name, oldValue, newValue);
-}
-
 void HTMLAnchorElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
 {
     if (name == hrefAttr) {