Making LayoutUnit conversions to Int types explicit in core/accessibility

Source/core/accessibility/AXObject.cpp

 /*
  * Copyright (C) 2008, 2009, 2011 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 712 matching lines @@
 {
     // Search up the parent chain until we find the first one that's scrollable.
     AXObject* scrollParent = parentObject();
     ScrollableArea* scrollableArea;
     for (scrollableArea = 0;
         scrollParent && !(scrollableArea = scrollParent->getScrollableAreaIfScrollable());
         scrollParent = scrollParent->parentObject()) { }
     if (!scrollableArea)
         return;
 
-    LayoutRect objectRect = elementRect();
+    IntRect objectRect = pixelSnappedIntRect(elementRect());
     IntPoint scrollPosition = scrollableArea->scrollPosition();
     IntRect scrollVisibleRect = scrollableArea->visibleContentRect();
 
     int desiredX = computeBestScrollOffset(
         scrollPosition.x(),
         objectRect.x() + subfocus.x(), objectRect.x() + subfocus.maxX(),
         objectRect.x(), objectRect.maxX(),
         0, scrollVisibleRect.width());
     int desiredY = computeBestScrollOffset(
         scrollPosition.y(),
@@ skipping 24 matching lines @@
     // next innermost object to the given point.
     int offsetX = 0, offsetY = 0;
     IntPoint point = globalPoint;
     size_t levels = objects.size() - 1;
     for (size_t i = 0; i < levels; i++) {
         const AXObject* outer = objects[i];
         const AXObject* inner = objects[i + 1];
 
         ScrollableArea* scrollableArea = outer->getScrollableAreaIfScrollable();
 
-        LayoutRect innerRect = inner->isAXScrollView() ? inner->parentObject()->elementRect() : inner->elementRect();
-        LayoutRect objectRect = innerRect;
+        IntRect innerRect = inner->isAXScrollView() ? pixelSnappedIntRect(inner->parentObject()->elementRect()) : pixelSnappedIntRect(inner->elementRect());
+        IntRect objectRect = innerRect;
         IntPoint scrollPosition = scrollableArea->scrollPosition();
 
         // Convert the object rect into local coordinates.
         objectRect.move(offsetX, offsetY);
         if (!outer->isAXScrollView())
             objectRect.move(scrollPosition.x(), scrollPosition.y());
 
         int desiredX = computeBestScrollOffset(
             0,
             objectRect.x(), objectRect.maxX(),
@@ skipping 103 matching lines @@
         return ToggleButtonRole;
     if (ariaHasPopup())
         return PopUpButtonRole;
     // We don't contemplate RadioButtonRole, as it depends on the input
     // type.
 
     return ButtonRole;
 }
 
 } // namespace WebCore