Post a microtask to load <img> elements.

Source/core/dom/IncrementLoadEventDelayCount.cpp

+// Copyright 2014 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 "config.h"
+#include "core/dom/IncrementLoadEventDelayCount.h"
+
+#include "core/dom/Document.h"
+
+namespace WebCore {
+
+IncrementLoadEventDelayCount::IncrementLoadEventDelayCount(Document& document)
+    : m_document(&document)
+{
+    document.incrementLoadEventDelayCount();
+}
+
+IncrementLoadEventDelayCount::~IncrementLoadEventDelayCount()
+{
+    m_document->decrementLoadEventDelayCount();
+}
+
+void IncrementLoadEventDelayCount::documentChanged(Document& newDocument)
+{
+    newDocument.incrementLoadEventDelayCount();
+    m_document->decrementLoadEventDelayCount();
+    m_document = &newDocument;
+}
+}