Automatically generate constructor attributes on WorkerContext

Tools/Scripts/webkitpy/bindings/main.py

Index: Tools/Scripts/webkitpy/bindings/main.py
diff --git a/Tools/Scripts/webkitpy/bindings/main.py b/Tools/Scripts/webkitpy/bindings/main.py
index 48536c2aef16fe19011aa46eab3d5a311fd5fa5e..bb76f5bca414493c62ef5c55d7f54823815197d6 100644
--- a/Tools/Scripts/webkitpy/bindings/main.py
+++ b/Tools/Scripts/webkitpy/bindings/main.py
@@ -60,7 +60,7 @@ class BindingsTests:
             exit_code = e.exit_code
         return exit_code
 
-    def generate_supplemental_dependency(self, input_directory, supplemental_dependency_file, window_constructors_file):
+    def generate_supplemental_dependency(self, input_directory, supplemental_dependency_file, window_constructors_file, workercontext_constructors_file):
         idl_files_list = tempfile.mkstemp()
         for input_file in os.listdir(input_directory):
             (name, extension) = os.path.splitext(input_file)
@@ -74,6 +74,7 @@ class BindingsTests:
                '--idl-files-list', idl_files_list[1],
                '--supplemental-dependency-file', supplemental_dependency_file,
                '--window-constructors-file', window_constructors_file,
+               '--workercontext-constructors-file', workercontext_constructors_file,
                '--write-file-only-if-changed', '0']
 
         exit_code = 0
@@ -149,7 +150,8 @@ class BindingsTests:
         input_directory = os.path.join('bindings', 'tests', 'idls')
         supplemental_dependency_file = tempfile.mkstemp()[1]
         window_constructors_file = tempfile.mkstemp()[1]
-        if self.generate_supplemental_dependency(input_directory, supplemental_dependency_file, window_constructors_file):
+        workercontext_constructors_file = tempfile.mkstemp()[1]
+        if self.generate_supplemental_dependency(input_directory, supplemental_dependency_file, window_constructors_file, workercontext_constructors_file):
             print 'Failed to generate a supplemental dependency file.'
             os.remove(supplemental_dependency_file)
             return -1