Remove minimum layout delay

Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 2414 matching lines @@
     }
 
     // Make sure both the initial layout and reflow happen after the onload
     // fires. This will improve onload scores, and other browsers do it.
     // If they wanna cheat, we can too. -dwh
 
     if (frame()->navigationScheduler().locationChangePending() && elapsedTime() < cLayoutScheduleThreshold) {
         // Just bail out. Before or during the onload we were shifted to another page.
         // The old i-Bench suite does this. When this happens don't bother painting or laying out.
         m_loadEventProgress = LoadEventCompleted;
-        view()->unscheduleRelayout();
         return;
     }
 
     // We used to force a synchronous display and flush here.  This really isn't
     // necessary and can in fact be actively harmful if pages are loading at a rate of > 60fps
     // (if your platform is syncing flushes and limiting them to 60fps).
     m_overMinimumLayoutThreshold = true;
     if (!ownerElement() || (ownerElement()->renderer() && !ownerElement()->renderer()->needsLayout())) {
         updateStyleIfNeeded();
 
@@ skipping 132 matching lines @@
     //
     //    (a) Only schedule a layout once the stylesheets are loaded.
     //    (b) Only schedule layout once we have a body element.
 
     return (haveStylesheetsLoaded() && body())
         || (documentElement() && !documentElement()->hasTagName(htmlTag));
 }
 
 bool Document::shouldParserYieldAgressivelyBeforeScriptExecution()
 {
-    return view() && view()->layoutPending() && !minimumLayoutDelay();
-}
-
-int Document::minimumLayoutDelay()
-{
-    if (m_overMinimumLayoutThreshold)
-        return 0;
-
-    int elapsed = elapsedTime();
-    m_overMinimumLayoutThreshold = elapsed > cLayoutScheduleThreshold;
-
-    // We'll want to schedule the timer to fire at the minimum layout threshold.
-    return max(0, cLayoutScheduleThreshold - elapsed);
+    return view() && view()->layoutPending();
 }
 
 int Document::elapsedTime() const
 {
     return static_cast<int>((currentTime() - m_startTime) * 1000);
 }
 
 void Document::write(const SegmentedString& text, Document* ownerDocument)
 {
     NestingLevelIncrementer nestingLevelIncrementer(m_writeRecursionDepth);
@@ skipping 2808 matching lines @@
 void Document::defaultEventHandler(Event* event)
 {
     if (frame() && frame()->remotePlatformLayer()) {
         frame()->chromeClient().forwardInputEvent(this, event);
         return;
     }
     Node::defaultEventHandler(event);
 }
 
 } // namespace WebCore