Merge 275988 "Move about://-related constants from //content to ..."

content/test/accessibility_browser_test_utils.cc

Index: content/test/accessibility_browser_test_utils.cc
===================================================================
--- content/test/accessibility_browser_test_utils.cc	(revision 276109)
+++ content/test/accessibility_browser_test_utils.cc	(working copy)
@@ -80,7 +80,7 @@
     if (root.string_attributes[i].first != ui::AX_ATTR_DOC_URL)
       continue;
     const std::string& doc_url = root.string_attributes[i].second;
-    return doc_url == kAboutBlankURL;
+    return doc_url == url::kAboutBlankURL;
   }
   return false;
 }