Revert of Make --dump-render-tree's requestAnimationFrame more real

content/shell/renderer/test_runner/WebTestProxy.cpp

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/shell/renderer/test_runner/WebTestProxy.h"
 
 #include <cctype>
 
 #include "content/shell/renderer/test_runner/AccessibilityController.h"
 #include "content/shell/renderer/test_runner/EventSender.h"
@@ skipping 716 matching lines @@
         m_animateScheduled = true;
         m_delegate->postDelayedTask(new HostMethodTask(this, &WebTestProxyBase::animateNow), 1);
     }
 }
 
 void WebTestProxyBase::animateNow()
 {
     if (m_animateScheduled) {
         m_animateScheduled = false;
         webWidget()->animate(0.0);
-        webWidget()->layout();
     }
 }
 
 void WebTestProxyBase::show(WebNavigationPolicy)
 {
     invalidateAll();
 }
 
 void WebTestProxyBase::setWindowRect(const WebRect& rect)
 {
@@ skipping 599 matching lines @@
 
 void WebTestProxyBase::resetInputMethod()
 {
     // If a composition text exists, then we need to let the browser process
     // to cancel the input method's ongoing composition session.
     if (m_webWidget)
         m_webWidget->confirmComposition();
 }
 
 }