Add executable bit and shebang to python files

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2253373002

Review-Url: https://codereview.chromium.org/2253373002

diff --git a/gn/echo_headers.py b/gn/echo_headers.py
old mode 100644 (file)
new mode 100755 (executable)

diff --git a/gn/gypi_to_gn.py b/gn/gypi_to_gn.py
old mode 100644 (file)
new mode 100755 (executable)
index 0800708..c4f31ae
--- a/gn/gypi_to_gn.py
+++ b/gn/gypi_to_gn.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+#
 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.

diff --git a/gyp/find.py b/gyp/find.py
old mode 100644 (file)
new mode 100755 (executable)
index d784dc2..e0e012e
--- a/gyp/find.py
+++ b/gyp/find.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+#
 # Copyright 2015 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be