Move some AX attrs from AXNodeData to AXTreeData.

content/browser/accessibility/browser_accessibility_auralinux.cc

Index: content/browser/accessibility/browser_accessibility_auralinux.cc
diff --git a/content/browser/accessibility/browser_accessibility_auralinux.cc b/content/browser/accessibility/browser_accessibility_auralinux.cc
index eccdc0980002e5da2481ccb168cc076dcb8ae1a9..e9640b3a8dd548f23fe0a67cdd04c4e270f8182a 100644
--- a/content/browser/accessibility/browser_accessibility_auralinux.cc
+++ b/content/browser/accessibility/browser_accessibility_auralinux.cc
@@ -205,13 +205,13 @@ static const gchar* GetDocumentAttributeValue(
     BrowserAccessibilityAuraLinux* obj,
     const gchar* attribute) {
   if (!g_ascii_strcasecmp(attribute, "DocType"))
-    return obj->GetStringAttribute(ui::AX_ATTR_DOC_DOCTYPE).c_str();
+    return obj->manager()->GetTreeData().doctype.c_str();
   else if (!g_ascii_strcasecmp(attribute, "MimeType"))
-    return obj->GetStringAttribute(ui::AX_ATTR_DOC_MIMETYPE).c_str();
+    return obj->manager()->GetTreeData().mimetype.c_str();
   else if (!g_ascii_strcasecmp(attribute, "Title"))
-    return obj->GetStringAttribute(ui::AX_ATTR_DOC_TITLE).c_str();
+    return obj->manager()->GetTreeData().title.c_str();
   else if (!g_ascii_strcasecmp(attribute, "URI"))
-    return obj->GetStringAttribute(ui::AX_ATTR_DOC_URL).c_str();
+    return obj->manager()->GetTreeData().url.c_str();
 
   return 0;
 }