Update uses of UTF conversions in content/ to use the base:: namespace.

content/browser/renderer_host/database_message_filter.cc

Index: content/browser/renderer_host/database_message_filter.cc
diff --git a/content/browser/renderer_host/database_message_filter.cc b/content/browser/renderer_host/database_message_filter.cc
index 55ea305d6e54684e2491c52e37c402a9f1038f5f..720cf20d3e1ef6646377a39ad95bdcf84c314278 100644
--- a/content/browser/renderer_host/database_message_filter.cc
+++ b/content/browser/renderer_host/database_message_filter.cc
@@ -186,7 +186,7 @@ void DatabaseMessageFilter::DatabaseDeleteFile(
     // In order to delete a journal file in incognito mode, we only need to
     // close the open handle to it that's stored in the database tracker.
     if (db_tracker_->IsIncognitoProfile()) {
-      const base::string16 wal_suffix(ASCIIToUTF16("-wal"));
+      const base::string16 wal_suffix(base::ASCIIToUTF16("-wal"));
       base::string16 sqlite_suffix;
 
       // WAL files can be deleted without having previously been opened.