can be deleted.
https://bugs.webkit.org/show_bug.cgi?id=68225

Patch by Dominic Mazzoni <dmazzoni@google.com> on 2011-09-19
Reviewed by Dimitri Glazkov.

This patch exposes the functionality needed from AXObjectCache
with new methods in WebAccessibilityObject and WebDocument.
Next, Chromium will be updated to use only these methods and
not WebAccessibilityCache. Then, WebAccessibilityCache can be
deleted from WebKit.

* public/WebAccessibilityObject.h:
* public/WebDocument.h:
* src/WebAccessibilityObject.cpp:
(WebKit::WebAccessibilityObject::enableAccessibility):
(WebKit::WebAccessibilityObject::accessibilityEnabled):
(WebKit::WebAccessibilityObject::axID):
* src/WebDocument.cpp:
(WebKit::WebDocument::accessibilityObject):
(WebKit::WebDocument::accessibilityObjectFromID):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@95491 268f45cc-cd09-0410-ab3c-d52691b4dbfc