Emit a console warning when blocking event listener is delayed for too long

third_party/WebKit/Source/bindings/core/v8/ScriptEventListener.cpp

Index: third_party/WebKit/Source/bindings/core/v8/ScriptEventListener.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/ScriptEventListener.cpp b/third_party/WebKit/Source/bindings/core/v8/ScriptEventListener.cpp
index f491043518e66e88ce5aa9df9ea3e4b6e3ed27ce..c5eb0a293519de09c46bae967f5a59b86dc96f51 100644
--- a/third_party/WebKit/Source/bindings/core/v8/ScriptEventListener.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/ScriptEventListener.cpp
@@ -95,31 +95,4 @@ v8::Local<v8::Object> eventListenerHandler(ExecutionContext* executionContext, E
     return v8Listener->getListenerObject(executionContext);
 }
 
-v8::Local<v8::Function> eventListenerEffectiveFunction(v8::Isolate* isolate, v8::Local<v8::Object> handler)
-{
-    v8::Local<v8::Function> function;
-    if (handler->IsFunction()) {
-        function = handler.As<v8::Function>();
-    } else if (handler->IsObject()) {
-        v8::Local<v8::Value> property;
-        // Try the "handleEvent" method (EventListener interface).
-        if (handler->Get(handler->CreationContext(), v8AtomicString(isolate, "handleEvent")).ToLocal(&property) && property->IsFunction())
-            function = property.As<v8::Function>();
-        // Fall back to the "constructor" property.
-        else if (handler->Get(handler->CreationContext(), v8AtomicString(isolate, "constructor")).ToLocal(&property) && property->IsFunction())
-            function = property.As<v8::Function>();
-    }
-    if (!function.IsEmpty())
-        return getBoundFunction(function);
-    return v8::Local<v8::Function>();
-}
-
-void getFunctionLocation(v8::Local<v8::Function> function, String& scriptId, int& lineNumber, int& columnNumber)
-{
-    int scriptIdValue = function->ScriptId();
-    scriptId = String::number(scriptIdValue);
-    lineNumber = function->GetScriptLineNumber();
-    columnNumber = function->GetScriptColumnNumber();
-}
-
 } // namespace blink