Updating DOM metadata with latest IDL version.

tools/dom/scripts/logging.conf

Index: tools/dom/scripts/logging.conf
diff --git a/tools/dom/scripts/logging.conf b/tools/dom/scripts/logging.conf
index b9d3e983863b23a0d87a730e1fe04f5490c86ef3..8645a8ee8b7c193cf77966ab6b28382d45b768f8 100644
--- a/tools/dom/scripts/logging.conf
+++ b/tools/dom/scripts/logging.conf
@@ -1,5 +1,5 @@
 [loggers]
-keys=root,pegparser,database,databasebuilder,dartgenerator,snippet_manager,htmlrenamer
+keys=root,pegparser,database,databasebuilder,dartgenerator,dartmetadata,snippet_manager,htmlrenamer
 
 [handlers]
 keys=consoleHandler
@@ -53,6 +53,12 @@ propagate=0
 handlers=consoleHandler
 qualname=htmlrenamer
 
+[logger_dartmetadata]
+level=INFO
+propagate=0
+handlers=consoleHandler
+qualname=dartmetadata
+
 [formatter_simpleFormatter]
 format=%(name)s - %(levelname)s - %(message)s
 datefmt=