Switch to using accessibilityEnabled and inlineTextBoxAccessibilityEnabled from settings

Source/core/accessibility/AXObjectCache.cpp

Index: Source/core/accessibility/AXObjectCache.cpp
diff --git a/Source/core/accessibility/AXObjectCache.cpp b/Source/core/accessibility/AXObjectCache.cpp
index a191a36d75e0a4508ae487eddf50a12f4e16c934..bb925864c327884e93cc36d1eb86562edce2e011 100644
--- a/Source/core/accessibility/AXObjectCache.cpp
+++ b/Source/core/accessibility/AXObjectCache.cpp
@@ -57,6 +57,7 @@
 #include "core/accessibility/AXTableRow.h"
 #include "core/dom/Document.h"
 #include "core/frame/LocalFrame.h"
+#include "core/frame/Settings.h"
 #include "core/html/HTMLAreaElement.h"
 #include "core/html/HTMLImageElement.h"
 #include "core/html/HTMLInputElement.h"
@@ -104,9 +105,6 @@ void AXComputedObjectAttributeCache::clear()
     m_idMapping.clear();
 }
 
-bool AXObjectCache::gAccessibilityEnabled = false;
-bool AXObjectCache::gInlineTextBoxAccessibility = false;
-
 AXObjectCache::AXObjectCache(Document& document)
     : m_document(document)
     , m_notificationPostTimer(this, &AXObjectCache::notificationPostTimerFired)
@@ -158,7 +156,7 @@ AXObject* AXObjectCache::focusedImageMapUIElement(HTMLAreaElement* areaElement)
 
 AXObject* AXObjectCache::focusedUIElementForPage(const Page* page)
 {
-    if (!gAccessibilityEnabled)
+    if (!page->settings().accessibilityEnabled())
         return 0;
 
     // Cross-process accessibility is not yet implemented.
@@ -451,7 +449,7 @@ AXObject* AXObjectCache::getOrCreate(AbstractInlineTextBox* inlineTextBox)
 
 AXObject* AXObjectCache::rootObject()
 {
-    if (!gAccessibilityEnabled)
+    if (!m_document.settings() || !m_document.settings()->accessibilityEnabled())
         return 0;
 
     return getOrCreate(m_document.view());
@@ -900,7 +898,7 @@ void AXObjectCache::recomputeIsIgnored(RenderObject* renderer)
 
 void AXObjectCache::inlineTextBoxesUpdated(RenderObject* renderer)
 {
-    if (!gInlineTextBoxAccessibility)
+    if (!m_document.settings() || !m_document.settings()->inlineTextBoxAccessibilityEnabled())
         return;
 
     // Only update if the accessibility object already exists and it's