Remove redundant DocumentLoadTiming references.

Source/core/dom/Document.cpp

Index: Source/core/dom/Document.cpp
diff --git a/Source/core/dom/Document.cpp b/Source/core/dom/Document.cpp
index f2929f0eb0859debabec50951d240a1dfae0d4b2..8365c734cdfdb06253398e82a321b6134ec741c8 100644
--- a/Source/core/dom/Document.cpp
+++ b/Source/core/dom/Document.cpp
@@ -5123,7 +5123,7 @@ void Document::serviceScriptedAnimations(double monotonicAnimationStartTime)
 ScriptedIdleTaskController& Document::ensureScriptedIdleTaskController()
 {
     if (!m_scriptedIdleTaskController)
-        m_scriptedIdleTaskController = ScriptedIdleTaskController::create(this, loader()->timing());
+        m_scriptedIdleTaskController = ScriptedIdleTaskController::create(this);
     return *m_scriptedIdleTaskController;
 }