Make the constructor of a LayoutRect from an IntRect explicit.

Source/web/PopupListBox.cpp

 /*
  * Copyright (c) 2011, 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 339 matching lines @@
 
         if (stripLeadingWhiteSpace(m_items[index]->label).foldCase().startsWith(prefixWithCaseFolded)) {
             selectIndex(index);
             return;
         }
     }
 }
 
 void PopupListBox::paint(GraphicsContext* gc, const IntRect& rect)
 {
-    ClipRecorder frameClip(displayItemClient(), gc, DisplayItem::ClipPopupListBoxFrame, frameRect());
+    ClipRecorder frameClip(displayItemClient(), gc, DisplayItem::ClipPopupListBoxFrame, LayoutRect(frameRect()));
     TransformRecorder transformRecorder(*gc, displayItemClient(), AffineTransform::translation(x(), y()));
     IntRect paintRect = intersection(rect, frameRect());
     paintRect.moveBy(-location());
 
     if (numItems()) {
         IntSize scrollOffset = flooredIntSize(m_scrollOffset);
         // FIXME: Calling this part of the scroll might cause issues later on
         // depending on how the compositor winds up using this information.
         // We may need to use an additional TransformRecorder instead, if that
         // happens.
@@ skipping 680 matching lines @@
     maximumOffset.clampNegativeToZero();
     return maximumOffset;
 }
 
 IntPoint PopupListBox::minimumScrollPosition() const
 {
     return IntPoint(-scrollOrigin().x(), -scrollOrigin().y());
 }
 
 } // namespace blink