Rework static method support.

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 d4fd26a14b19f1f23a3728ef06530b336f40c845..12af831a21fe8030d3b4afa1644f92adbb3cf699 100644
--- a/lib/dom/scripts/systemhtml.py
+++ b/lib/dom/scripts/systemhtml.py
@@ -753,6 +753,9 @@ class HtmlDartInterfaceGenerator(DartInterfaceGenerator):
       operations - contains the overloads, one or more operations with the same
         name.
     """
+    if info.IsStatic():
+      return
+
     html_name = self._shared.RenameInHtmlLibrary(
         self._interface, info.name)
     if html_name and not self._shared.IsPrivate(html_name):
@@ -1031,6 +1034,9 @@ class HtmlFrogClassGenerator(FrogInterfaceGenerator):
     Arguments:
       info: An OperationInfo object.
     """
+    if info.IsStatic():
+      return
+
     html_name = self._shared.RenameInHtmlLibrary(
         self._interface, info.name, implementation_class=True)
     if not html_name:
@@ -1553,6 +1559,9 @@ class HtmlDartiumInterfaceGenerator(object):
     Arguments:
       info: An OperationInfo object.
     """
+    if info.IsStatic():
+      return
+
     html_name = self._shared.RenameInHtmlLibrary(
         self._interface, info.name, implementation_class=True)