SDK: We also need some stuff from mojo/public/python.

sdk_build/data/cpp/cpp.sdk

Index: sdk_build/data/cpp/cpp.sdk
diff --git a/sdk_build/data/cpp/cpp.sdk b/sdk_build/data/cpp/cpp.sdk
index 794ffa2d3b287a128d784016377291a0ab5acad8..6345e7bca6b9dedab203cf8aac891fe0860a0b2d 100644
--- a/sdk_build/data/cpp/cpp.sdk
+++ b/sdk_build/data/cpp/cpp.sdk
@@ -44,14 +44,21 @@ CopyDir("mojo/public/third_party/jinja2",
 CopyDir("mojo/public/third_party/markupsafe",
         "third_party/mojo/public/third_party/markupsafe",
         recursive=True)
+# We currently need some stuff to glue the mojom parser to the generators.
+CopyDir("mojo/public/python/dummy_mojo_system",
+        "third_party/mojo/public/python/dummy_mojo_system",
+        recursive=True)
+CopyDir("mojo/public/python/mojo_bindings",
+        "third_party/mojo/public/python/mojo_bindings",
+        recursive=True)
+
+# Scripts to download binaries.
+CopyFiles(["sdk_build/data/common/download_file_from_google_storage.py",
+           "sdk_build/data/common/download_mojom_parser.sh"],
+          "third_party/mojo_sdk_setup")
 
 # Seed an example.
 CopyDir("examples/hello_mojo",
         "examples/hello_mojo",
         recursive=True,
         exclude_file_patterns=EXCLUDE_FILES)
-
-# Scripts to download binaries.
-CopyFiles(["sdk_build/data/common/download_file_from_google_storage.py",
-           "sdk_build/data/common/download_mojom_parser.sh"],
-          "third_party/mojo_sdk_setup")