Switch to using accessibilityEnabled and inlineTextBoxAccessibilityEnabled from settings

Source/core/dom/Document.cpp

Index: Source/core/dom/Document.cpp
diff --git a/Source/core/dom/Document.cpp b/Source/core/dom/Document.cpp
index 6161049668c40d4b889dd4d3bdf6d0aebb1b9319..bd03b6b97be299a6a93826ba54cc9e0bbb651880 100644
--- a/Source/core/dom/Document.cpp
+++ b/Source/core/dom/Document.cpp
@@ -2278,9 +2278,6 @@ void Document::clearAXObjectCache()
 
 AXObjectCache* Document::existingAXObjectCache() const
 {
-    if (!AXObjectCache::accessibilityEnabled())
-        return 0;
-
     // If the renderer is gone then we are in the process of destruction.
     // This method will be called before m_frame = 0.
     if (!axObjectCacheOwner().renderView())
@@ -2291,7 +2288,8 @@ AXObjectCache* Document::existingAXObjectCache() const
 
 AXObjectCache* Document::axObjectCache() const
 {
-    if (!AXObjectCache::accessibilityEnabled())
+    Settings* settings = this->settings();
+    if (!settings || !settings->accessibilityEnabled())
         return 0;
 
     // The only document that actually has a AXObjectCache is the top-level
@@ -2593,7 +2591,8 @@ void Document::implicitClose()
 
     m_loadEventProgress = LoadEventCompleted;
 
-    if (frame() && renderView() && AXObjectCache::accessibilityEnabled()) {
+    Settings* settings = this->settings();
+    if (frame() && renderView() && settings && settings->accessibilityEnabled()) {

[abarth-chromium, 2014/08/29 18:32:07]

There's no need to null check settings here.  If you have a renderView() you'll
have a settings().

[aboxhall, 2014/08/29 20:35:16]

Done.

         // The AX cache may have been cleared at this point, but we need to make sure it contains an
         // AX object to send the notification to. getOrCreate will make sure that an valid AX object
         // exists in the cache (we ignore the return value because we don't need it here). This is