Provides an API to cope with table headers in Accessibility

public/web/WebAXObject.h

 /*
  * Copyright (C) 2009 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 187 matching lines @@
     // For a table column
     BLINK_EXPORT unsigned columnIndex() const;
     BLINK_EXPORT WebAXObject columnHeader() const;
 
     // For a table cell
     BLINK_EXPORT unsigned cellColumnIndex() const;
     BLINK_EXPORT unsigned cellColumnSpan() const;
     BLINK_EXPORT unsigned cellRowIndex() const;
     BLINK_EXPORT unsigned cellRowSpan() const;
 
+    BLINK_EXPORT void tableHeaders(WebVector<WebAXObject>&, bool) const;

[dmazzoni, 2014/12/17 01:05:57]

You need to name parameters when they're non-obvious, so this should be "bool
rowHeaders"

However, I think I'd prefer two separate functions here: rowHeaders and
columnHeaders - rather than passing false and true. This is the "public" API for
Blink so clarity and readability are quite important

+
     // Load inline text boxes for just this subtree, even if
     // settings->inlineTextBoxAccessibilityEnabled() is false.
     BLINK_EXPORT void loadInlineTextBoxes() const;
 
     // For an inline text box.
     BLINK_EXPORT WebAXTextDirection textDirection() const;
     BLINK_EXPORT void characterOffsets(WebVector<int>&) const;
     BLINK_EXPORT void wordBoundaries(WebVector<int>& starts, WebVector<int>& ends) const;
 
     // Make this object visible by scrolling as many nested scrollable views as needed.
     BLINK_EXPORT void scrollToMakeVisible() const;
     // Same, but if the whole object can't be made visible, try for this subrect, in local coordinates.
     BLINK_EXPORT void scrollToMakeVisibleWithSubFocus(const WebRect&) const;
     // Scroll this object to a given point in global coordinates of the top-level window.
     BLINK_EXPORT void scrollToGlobalPoint(const WebPoint&) const;
 
 #if BLINK_IMPLEMENTATION
     WebAXObject(const WTF::PassRefPtr<AXObject>&);
     WebAXObject& operator=(const WTF::PassRefPtr<AXObject>&);
     operator WTF::PassRefPtr<AXObject>() const;
 #endif
 
 private:
     WebPrivatePtr<AXObject> m_private;
 };
 
 } // namespace blink
 
 #endif