Expose scroll containers via accessibility APIs.

Source/modules/accessibility/AXLayoutObject.cpp

Index: Source/modules/accessibility/AXLayoutObject.cpp
diff --git a/Source/modules/accessibility/AXLayoutObject.cpp b/Source/modules/accessibility/AXLayoutObject.cpp
index b4ecf0ac24d8cbe2e101e78eb8ce289ecc374fdb..c1e52d0f0ef40053bb9943766925622906cd54ea 100644
--- a/Source/modules/accessibility/AXLayoutObject.cpp
+++ b/Source/modules/accessibility/AXLayoutObject.cpp
@@ -687,6 +687,9 @@ bool AXLayoutObject::computeAccessibilityIsIgnored(IgnoredReasons* ignoredReason
     if (!ariaAccessibilityDescription().isEmpty())
         return false;
 
+    if (isScrollableContainer())
+        return false;
+
     // By default, objects should be ignored so that the AX hierarchy is not
     // filled with unnecessary items.
     return true;
@@ -1648,19 +1651,6 @@ void AXLayoutObject::setValue(const String& string)
         toHTMLTextAreaElement(*node()).setValue(string);
 }
 
-// FIXME: This function should use an IntSize to avoid the conversion below.
-void AXLayoutObject::scrollTo(const IntPoint& point) const
-{
-    if (!m_layoutObject || !m_layoutObject->isBox())
-        return;
-
-    LayoutBox* box = toLayoutBox(m_layoutObject);
-    if (!box->canBeScrolledAndHasScrollableArea())
-        return;
-
-    box->scrollToOffset(IntSize(point.x(), point.y()));
-}
-
 //
 // Notifications that this object may have changed.
 //