Make HtmlFrogSystem and NativeImplementationSystem the backends for HtmlInterfacesSystem and remove…

lib/dom/scripts/systemhtml.py

Index: lib/dom/scripts/systemhtml.py
diff --git a/lib/dom/scripts/systemhtml.py b/lib/dom/scripts/systemhtml.py
index fa461922368d735f8e51e5e008ac1230d96d51c3..0a800530e4830e62036ed9714c26c3781025356e 100644
--- a/lib/dom/scripts/systemhtml.py
+++ b/lib/dom/scripts/systemhtml.py
@@ -767,14 +767,18 @@ class HtmlSystem(System):
 
 class HtmlInterfacesSystem(HtmlSystem):
 
-  def __init__(self, templates, database, emitters, output_dir):
+  def __init__(self, templates, database, emitters, output_dir, backend):
     super(HtmlInterfacesSystem, self).__init__(
         templates, database, emitters, output_dir)
+    self._backend = backend
     self._dart_interface_file_paths = []
     self._factory_provider_emitters = {}
 
   def ProcessInterface(self, interface):
     """."""
+
+    self._backend.ProcessInterface(interface)
+
     if interface.id in _merged_html_interfaces:
       return
 
@@ -803,8 +807,7 @@ class HtmlInterfacesSystem(HtmlSystem):
     self._ProcessCallback(interface, info, file_path)
 
   def GenerateLibraries(self):
-    pass
-
+    self._backend.GenerateLibraries(self._dart_interface_file_paths)
 
   def _FilePathForDartInterface(self, interface_name):
     """Returns the file path of the Dart interface definition."""
@@ -1366,13 +1369,11 @@ class HtmlFrogSystem(HtmlSystem):
                                        dart_code, self._shared)
     generator.Generate()
 
-  def GenerateLibraries(self):
+  def GenerateLibraries(self, interface_files):
     self._GenerateLibFile(
         'html_frog.darttemplate',
         os.path.join(self._output_dir, 'html_frog.dart'),
-        (self._interface_system._dart_interface_file_paths +
-         self._interface_system._dart_callback_file_paths +
-         self._dart_frog_file_paths))
+        interface_files + self._dart_frog_file_paths)
 
   def Finish(self):
     pass
@@ -1392,43 +1393,6 @@ class HtmlFrogSystem(HtmlSystem):
 
 # -----------------------------------------------------------------------------
 
-class HtmlDartiumSystem(HtmlSystem):
-
-  def __init__(self, templates, database, emitters, auxiliary_dir,
-               dom_implementation_classes, output_dir):
-    """Prepared for generating wrapping implementation.
-
-    - Creates emitter for Dart code.
-    """
-    super(HtmlDartiumSystem, self).__init__(
-        templates, database, emitters, output_dir)
-    self._auxiliary_dir = auxiliary_dir
-    self._dom_implementation_classes = dom_implementation_classes
-
-  def ProcessInterface(self, interface):
-    # Implementation classes are generated by NativeImplementationSystem.
-    # FIXME: merge HtmlDartiumSystem into NativeImplementationSystem.
-    pass
-
-  def ProcessCallback(self, interface, info):
-    pass
-
-  def GenerateLibraries(self):
-    # Library generated for implementation.
-    auxiliary_dir = os.path.relpath(self._auxiliary_dir, self._output_dir)
-
-    self._GenerateLibFile(
-        'html_dartium.darttemplate',
-        os.path.join(self._output_dir, 'html_dartium.dart'),
-        (self._interface_system._dart_interface_file_paths +
-         self._interface_system._dart_callback_file_paths +
-         self._dom_implementation_classes),
-        AUXILIARY_DIR=MassagePath(auxiliary_dir))
-
-  def Finish(self):
-    pass
-
-
 def _ComputeInheritanceClosure(database):
   def Collect(interface, seen, collected):
     name = interface.id