IDL: Use implicit false in compute_info_individual()

This is a minor style correction. We'd prefer the 'implicit false' rather
than 'len(array) > 0'.

Review URL: https://codereview.chromium.org/678453004

git-svn-id: svn://svn.chromium.org/blink/trunk@184324 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/bindings/scripts/compute_interfaces_info_individual.py

@@ -149,7 +149,7 @@ class InterfaceInfoCollector(object):
         """Reads an idl file and collects information which is required by the
         binding code generation."""
         definitions = self.reader.read_idl_file(idl_filename)
-        if len(definitions.interfaces) > 0:
+        if definitions.interfaces:
             definition = next(definitions.interfaces.itervalues())
             interface_info = {
                 'is_callback_interface': definition.is_callback,
@@ -163,7 +163,7 @@ class InterfaceInfoCollector(object):
                 # [PutForwards].
                 'referenced_interfaces': get_put_forward_interfaces_from_definition(definition),
             }
-        elif len(definitions.dictionaries) > 0:
+        elif definitions.dictionaries:
             definition = next(definitions.dictionaries.itervalues())
             interface_info = {
                 'is_callback_interface': False,