Reland: Made content editables report the caret and text selection by treating them as text controls

Source/modules/accessibility/AXObject.h

Index: Source/modules/accessibility/AXObject.h
diff --git a/Source/modules/accessibility/AXObject.h b/Source/modules/accessibility/AXObject.h
index 42c5b39203046ae28dbbf741da8fa2f5a1b19083..5f16a05455a03231346f0e5a09a5d6537c1efe16 100644
--- a/Source/modules/accessibility/AXObject.h
+++ b/Source/modules/accessibility/AXObject.h
@@ -409,6 +409,7 @@ public:
     virtual bool isTableCell() const { return false; }
     virtual bool isTableRow() const { return false; }
     virtual bool isTableCol() const { return false; }
+    bool hasContentEditableAttributeSet() const;

[dmazzoni, 2015/04/10 21:23:24]

Instead of moving hasContentEditableAttributeSet to AXObject, how about moving
the implementation of isTextControl to AXNodeObject?

There are some AXObjects that aren't nodes. Code that checks the attributes of
an HTML element should be in AXNodeObject or a subclass of that, not on
AXObject.

     bool isTextControl() const;
     bool isTree() const { return roleValue() == TreeRole; }
     bool isTreeItem() const { return roleValue() == TreeItemRole; }