Use page popup pixel readback for calendar-picker-appearance.html

Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 1578 matching lines @@
 {
     ASSERT(popup);
     WebPagePopupImpl* popupImpl = toWebPagePopupImpl(popup);
     ASSERT(m_pagePopup.get() == popupImpl);
     if (m_pagePopup.get() != popupImpl)
         return;
     m_pagePopup->closePopup();
     m_pagePopup = nullptr;
 }
 
+LocalDOMWindow* WebViewImpl::pagePopupWindow()
+{
+    return m_pagePopup ? m_pagePopup->window() : nullptr;
+}
+
 Frame* WebViewImpl::focusedCoreFrame() const
 {
     return m_page ? m_page->focusController().focusedOrMainFrame() : 0;
 }
 
 WebViewImpl* WebViewImpl::fromPage(Page* page)
 {
     if (!page)
         return 0;
     return static_cast<WebViewImpl*>(page->chrome().client().webView());
@@ skipping 2805 matching lines @@
     const PageScaleConstraints& constraints = m_pageScaleConstraintsSet.pageDefinedConstraints();
 
     if (!mainFrameImpl() || !mainFrameImpl()->frameView())
         return false;
 
     return mainFrameImpl()->frameView()->layoutSize().width() == m_size.width
         || (constraints.minimumScale == constraints.maximumScale && constraints.minimumScale != -1);
 }
 
 } // namespace blink