Roll 50: Copied IDLs, PYTHON scripts from WebKit removed deleted files in WebCore

bindings/scripts/v8_callback_interface.py

Index: bindings/scripts/v8_callback_interface.py
diff --git a/bindings/scripts/v8_callback_interface.py b/bindings/scripts/v8_callback_interface.py
index 8ceeb9a7a8282bec7e67539bf8bb8aa5af7a14ac..682cb55e27227428754bad68161a7c32e0de3a59 100644
--- a/bindings/scripts/v8_callback_interface.py
+++ b/bindings/scripts/v8_callback_interface.py
@@ -63,7 +63,8 @@ def cpp_type(idl_type):
         return 'void'
     # Callbacks use raw pointers, so raw_type=True
     raw_cpp_type = idl_type.cpp_type_args(raw_type=True)
-    if raw_cpp_type.startswith(('Vector', 'HeapVector', 'WillBeHeapVector')):
+    # Pass containers and dictionaries to callback method by const reference rather than by value
+    if raw_cpp_type.startswith(('Vector', 'HeapVector', 'WillBeHeapVector')) or idl_type.is_dictionary:
         return 'const %s&' % raw_cpp_type
     return raw_cpp_type
 
@@ -74,7 +75,6 @@ def callback_interface_context(callback_interface):
     includes.clear()
     includes.update(CALLBACK_INTERFACE_CPP_INCLUDES)
     return {
-        'conditional_string': v8_utilities.conditional_string(callback_interface),
         'cpp_class': callback_interface.name,
         'v8_class': v8_utilities.v8_class_name(callback_interface),
         'header_includes': set(CALLBACK_INTERFACE_H_INCLUDES),