Source/WebCore: [Chromium] AX: WebAccessibilityObject should check if an AccessibilityObject is detached
https://bugs.webkit.org/show_bug.cgi?id=87778

Patch by Dominic Mazzoni <dmazzoni@chromium.org> on 2012-05-30
Reviewed by Adam Barth.

Chromium was never actually using AccessibilityObjectWrapper, so
this change deletes it. Instead, it's replaced with a simple bool
that keeps track of whether an AccessibilityObject was detached or
not. WebKit/chromium/public/WebAccessibilityObject can then use this
to determine if an object is still valid.

Test: accessibility/accessibility-object-detached.html

* WebCore.gypi:
* accessibility/AccessibilityObject.cpp:
(WebCore::AccessibilityObject::AccessibilityObject):
(WebCore::AccessibilityObject::detach):
(WebCore::AccessibilityObject::isDetached):
(WebCore):
* accessibility/AccessibilityObject.h:
(AccessibilityObject):
* accessibility/chromium/AXObjectCacheChromium.cpp:
(WebCore):
(WebCore::AXObjectCache::detachWrapper):
(WebCore::AXObjectCache::attachWrapper):
* accessibility/chromium/AccessibilityObjectWrapper.h: Removed.

Source/WebKit/chromium: AX: Chromium WebAccessibilityObject should check if an AccessibilityObject is detached
https://bugs.webkit.org/show_bug.cgi?id=87778

Patch by Dominic Mazzoni <dmazzoni@google.com> on 2012-05-30
Reviewed by Adam Barth.

Pretty simple - all places that previously just checked for null
now also check if the wrapped AccessibilityObject is detached.

* public/WebAccessibilityObject.h:
(WebAccessibilityObject):
* src/WebAccessibilityObject.cpp:
(WebKit::WebAccessibilityObject::isDetached):
(WebKit):
(WebKit::WebAccessibilityObject::axID):
(WebKit::WebAccessibilityObject::accessibilityDescription):
(WebKit::WebAccessibilityObject::actionVerb):
(WebKit::WebAccessibilityObject::canSetFocusAttribute):
(WebKit::WebAccessibilityObject::canSetValueAttribute):
(WebKit::WebAccessibilityObject::isValid):
(WebKit::WebAccessibilityObject::childCount):
(WebKit::WebAccessibilityObject::childAt):
(WebKit::WebAccessibilityObject::firstChild):
(WebKit::WebAccessibilityObject::focusedChild):
(WebKit::WebAccessibilityObject::lastChild):
(WebKit::WebAccessibilityObject::nextSibling):
(WebKit::WebAccessibilityObject::parentObject):
(WebKit::WebAccessibilityObject::previousSibling):
(WebKit::WebAccessibilityObject::canSetSelectedAttribute):
(WebKit::WebAccessibilityObject::isAnchor):
(WebKit::WebAccessibilityObject::isAriaReadOnly):
(WebKit::WebAccessibilityObject::isButtonStateMixed):
(WebKit::WebAccessibilityObject::isChecked):
(WebKit::WebAccessibilityObject::isCollapsed):
(WebKit::WebAccessibilityObject::isControl):
(WebKit::WebAccessibilityObject::isEnabled):
(WebKit::WebAccessibilityObject::isFocused):
(WebKit::WebAccessibilityObject::isHovered):
(WebKit::WebAccessibilityObject::isIndeterminate):
(WebKit::WebAccessibilityObject::isLinked):
(WebKit::WebAccessibilityObject::isLoaded):
(WebKit::WebAccessibilityObject::isMultiSelectable):
(WebKit::WebAccessibilityObject::isOffScreen):
(WebKit::WebAccessibilityObject::isPasswordField):
(WebKit::WebAccessibilityObject::isPressed):
(WebKit::WebAccessibilityObject::isReadOnly):
(WebKit::WebAccessibilityObject::isRequired):
(WebKit::WebAccessibilityObject::isSelected):
(WebKit::WebAccessibilityObject::isSelectedOptionActive):
(WebKit::WebAccessibilityObject::isVertical):
(WebKit::WebAccessibilityObject::isVisible):
(WebKit::WebAccessibilityObject::isVisited):
(WebKit::WebAccessibilityObject::accessKey):
(WebKit::WebAccessibilityObject::ariaHasPopup):
(WebKit::WebAccessibilityObject::ariaLiveRegionAtomic):
(WebKit::WebAccessibilityObject::ariaLiveRegionBusy):
(WebKit::WebAccessibilityObject::ariaLiveRegionRelevant):
(WebKit::WebAccessibilityObject::ariaLiveRegionStatus):
(WebKit::WebAccessibilityObject::boundingBoxRect):
(WebKit::WebAccessibilityObject::estimatedLoadingProgress):
(WebKit::WebAccessibilityObject::helpText):
(WebKit::WebAccessibilityObject::headingLevel):
(WebKit::WebAccessibilityObject::hierarchicalLevel):
(WebKit::WebAccessibilityObject::hitTest):
(WebKit::WebAccessibilityObject::keyboardShortcut):
(WebKit::WebAccessibilityObject::performDefaultAction):
(WebKit::WebAccessibilityObject::roleValue):
(WebKit::WebAccessibilityObject::selectionEnd):
(WebKit::WebAccessibilityObject::selectionStart):
(WebKit::WebAccessibilityObject::setFocused):
(WebKit::WebAccessibilityObject::stringValue):
(WebKit::WebAccessibilityObject::title):
(WebKit::WebAccessibilityObject::titleUIElement):
(WebKit::WebAccessibilityObject::url):
(WebKit::WebAccessibilityObject::valueDescription):
(WebKit::WebAccessibilityObject::valueForRange):
(WebKit::WebAccessibilityObject::maxValueForRange):
(WebKit::WebAccessibilityObject::minValueForRange):
(WebKit::WebAccessibilityObject::node):
(WebKit::WebAccessibilityObject::document):
(WebKit::WebAccessibilityObject::hasComputedStyle):
(WebKit::WebAccessibilityObject::computedStyleDisplay):
(WebKit::WebAccessibilityObject::accessibilityIsIgnored):
(WebKit::WebAccessibilityObject::lineBreaks):
(WebKit::WebAccessibilityObject::columnCount):
(WebKit::WebAccessibilityObject::rowCount):

LayoutTests: AX: Chromium WebAccessibilityObject should check if an AccessibilityObject is detached
https://bugs.webkit.org/show_bug.cgi?id=87778

Patch by Dominic Mazzoni <dmazzoni@google.com> on 2012-05-30
Reviewed by Adam Barth.

* accessibility/accessibility-object-detached-expected.txt: Added.
* accessibility/accessibility-object-detached.html: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@119012 268f45cc-cd09-0410-ab3c-d52691b4dbfc