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 ad901ee9f0a31e05ae7cdc8c6c3551b5b8e5ab1d..42cc5b687803fefd5c522395e64c57d105bd755f 100644
--- a/Source/core/dom/Document.cpp
+++ b/Source/core/dom/Document.cpp
@@ -2262,9 +2262,6 @@ 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 (!topDocument().renderView())
@@ -2275,7 +2272,7 @@ AXObjectCache* Document::existingAXObjectCache() const
 
 AXObjectCache* Document::axObjectCache() const
 {
-    if (!AXObjectCache::accessibilityEnabled())
+    if (!settings() || !settings()->accessibilityEnabled())

[abarth-chromium, 2014/08/23 05:59:11]

Please don't call settings() twice.  It's not free.

[aboxhall, 2014/08/27 15:26:33]

Done.

         return 0;
 
     // The only document that actually has a AXObjectCache is the top-level
@@ -2577,7 +2574,7 @@ void Document::implicitClose()
 
     m_loadEventProgress = LoadEventCompleted;
 
-    if (frame() && renderView() && AXObjectCache::accessibilityEnabled()) {
+    if (frame() && renderView() && settings() && settings()->accessibilityEnabled()) {
         // 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