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gn/echo_headers.py

Index: gn/echo_headers.py
diff --git a/gn/echo_headers.py b/gn/echo_headers.py
new file mode 100644
index 0000000000000000000000000000000000000000..325124fc22c7a45ad3c82f72d4fee51034459361
--- /dev/null
+++ b/gn/echo_headers.py
@@ -0,0 +1,27 @@
+#!/usr/bin/env python
+#
+# Copyright 2016 Google Inc.
+#
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import sys
+import os
+import os.path
+
+blacklist = [
+  'GrGLConfig_chrome.h',
+]
+
+headers = []
+for d in sys.argv[2:]:
+  headers.extend([f for f in os.listdir(d)
+                  if os.path.isfile(os.path.join(d,f))])
+with open(sys.argv[1], "w") as f:
+  f.write('// skia.h generated by GN.\n')
+  f.write('#ifndef skia_h_DEFINED\n')
+  f.write('#define skia_h_DEFINED\n')
+  for h in headers:
+    if h not in blacklist:
+      f.write('#include "' + h + '"\n')
+  f.write('#endif//skia_h_DEFINED\n')