Generate java bindings for constants.

mojo/public/tools/bindings/mojom_bindings_generator.py

Index: mojo/public/tools/bindings/mojom_bindings_generator.py
diff --git a/mojo/public/tools/bindings/mojom_bindings_generator.py b/mojo/public/tools/bindings/mojom_bindings_generator.py
index aee3b8c253c599d5127923753ef50eacd01e4511..93325767b2ac4fd70319b91d6b37136964511495 100755
--- a/mojo/public/tools/bindings/mojom_bindings_generator.py
+++ b/mojo/public/tools/bindings/mojom_bindings_generator.py
@@ -53,6 +53,9 @@ def LoadGenerators(generators_string):
     elif generator_name.lower() == "javascript":
       generator_name = os.path.join(script_dir, "generators",
                                     "mojom_js_generator.py")
+    elif generator_name.lower() == "java":
+      generator_name = os.path.join(script_dir, "generators",
+                                    "mojom_java_generator.py")
     # Specified generator python module:
     elif generator_name.endswith(".py"):
       pass
@@ -153,7 +156,7 @@ def main():
   parser.add_argument("-o", "--output_dir", dest="output_dir", default=".",
                       help="output directory for generated files")
   parser.add_argument("-g", "--generators", dest="generators_string",
-                      metavar="GENERATORS", default="c++,javascript",
+                      metavar="GENERATORS", default="c++,javascript,java",
                       help="comma-separated list of generators")
   parser.add_argument("--debug_print_intermediate", action="store_true",
                       help="print the intermediate representation")