Unreviewed. Build fix.

WK2: Support Accessibility
https://bugs.webkit.org/show_bug.cgi?id=51859

WebCore: 

* accessibility/gtk/AccessibilityObjectWrapperAtk.cpp:
(fallbackObject):

WebKit2: 

* WebProcess/WebPage/mac/AccessibilityWebPageObject.mm:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@75034 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/WebCore/accessibility/gtk/AccessibilityObjectWrapperAtk.cpp b/WebCore/accessibility/gtk/AccessibilityObjectWrapperAtk.cpp
index 714ae54..5beffd2 100644
--- a/WebCore/accessibility/gtk/AccessibilityObjectWrapperAtk.cpp
+++ b/WebCore/accessibility/gtk/AccessibilityObjectWrapperAtk.cpp
@@ -76,7 +76,8 @@
 
 static AccessibilityObject* fallbackObject()
 {
-    static AXObjectCache* fallbackCache = new AXObjectCache;
+    // FIXME: An AXObjectCache with a Document is meaningless.
+    static AXObjectCache* fallbackCache = new AXObjectCache(0);
     static AccessibilityObject* object = 0;
     if (!object) {
         // FIXME: using fallbackCache->getOrCreate(ListBoxOptionRole) is a hack