Keep track of accessibility focus across windows.

third_party/WebKit/Source/modules/accessibility/AXObjectCacheImpl.cpp

Index: third_party/WebKit/Source/modules/accessibility/AXObjectCacheImpl.cpp
diff --git a/third_party/WebKit/Source/modules/accessibility/AXObjectCacheImpl.cpp b/third_party/WebKit/Source/modules/accessibility/AXObjectCacheImpl.cpp
index 314bcaa6d1c0290441f3137f5c37d3356bc3b655..0fcf606526db6b67d091ab9a2579e609bf1f625f 100644
--- a/third_party/WebKit/Source/modules/accessibility/AXObjectCacheImpl.cpp
+++ b/third_party/WebKit/Source/modules/accessibility/AXObjectCacheImpl.cpp
@@ -149,12 +149,13 @@ AXObject* AXObjectCacheImpl::focusedImageMapUIElement(HTMLAreaElement* areaEleme
     return 0;
 }
 
-AXObject* AXObjectCacheImpl::focusedUIElementForPage(const Page* page)
+AXObject* AXObjectCacheImpl::focusedObject()
 {
-    if (!page->settings().accessibilityEnabled())
+    if (!accessibilityEnabled())
         return 0;
 
     // Cross-process accessibility is not yet implemented.
+    Page* page = m_document->page();
     if (!page->focusController().focusedOrMainFrame()->isLocalFrame())
         return 0;
 
@@ -1114,7 +1115,7 @@ void AXObjectCacheImpl::handleFocusedUIElementChanged(Node* oldFocusedNode, Node
     if (!page)
         return;
 
-    AXObject* focusedObject = focusedUIElementForPage(page);
+    AXObject* focusedObject = this->focusedObject();
     if (!focusedObject)
         return;