Added Dartium changes onto 45.0.2454.104

Source/bindings/scripts/idl_reader.py

Index: Source/bindings/scripts/idl_reader.py
diff --git a/Source/bindings/scripts/idl_reader.py b/Source/bindings/scripts/idl_reader.py
index e9d44be9594cc6b2ef62cef67f5b3a86e2d6fce5..f0952f0e7ab2ac922d59d9f4a8672678ac5093fc 100644
--- a/Source/bindings/scripts/idl_reader.py
+++ b/Source/bindings/scripts/idl_reader.py
@@ -75,7 +75,8 @@ def validate_blink_idl_definitions(idl_filename, idl_file_basename,
 
 
 class IdlReader(object):
-    def __init__(self, interfaces_info=None, outputdir=''):
+    def __init__(self, interfaces_info=None, outputdir='', multi_interface=False):
+        self.multi_interface = multi_interface
         self.extended_attribute_validator = IDLExtendedAttributeValidator()
         self.interfaces_info = interfaces_info
 
@@ -113,8 +114,11 @@ class IdlReader(object):
         idl_file_basename, _ = os.path.splitext(os.path.basename(idl_filename))
         definitions = IdlDefinitions(idl_file_basename, ast)
 
-        validate_blink_idl_definitions(
-            idl_filename, idl_file_basename, definitions)
+        if not self.multi_interface:
+            validate_blink_idl_definitions(idl_filename, idl_file_basename, definitions)
+        else:
+            if len(definitions.interfaces) > 1:
+                print '----- Supplemental interfaces %s' % len(definitions.interfaces)
 
         # Validate extended attributes
         if not self.extended_attribute_validator: