Fix applying git diff with new file mode 644 on a svn checkout.

testing_support/patches_data.py

 # coding: utf-8
 # Copyright (c) 2012 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.
 
 """Samples patches to test patch.py."""
 
 
 class RAW(object):
   PATCH = (
@@ skipping 274 matching lines @@
       'diff --git a/git_cl/git-cl b/git_cl/git-cl\n'
       'old mode 100644\n'
       'new mode 100755\n')
 
   MODE_EXE_JUNK = (
       'Index: Junk\n'
       'diff --git a/git_cl/git-cl b/git_cl/git-cl\n'
       'old mode 100644\n'
       'new mode 100755\n')
 
+  NEW_NOT_EXECUTABLE = (
+      'diff --git a/build/android/ant/create.js b/build/android/ant/create.js\n'
+      'new file mode 100644\n'
+      'index 0000000000000000000..542a89e978feada38dd\n'
+      '--- /dev/null\n'
+      '+++ b/build/android/ant/create.js\n'
+      '@@ -0,0 +1,1 @@\n'
+      '+// Copyright (c) 2012 The Chromium Authors. All rights reserved.\n'
+  )
+
   FOUR_HUNKS = (
       'Index: presubmit_support.py\n'
       'diff --git a/presubmit_support.py b/presubmit_support.py\n'
       'index 52416d3f..d56512f2 100755\n'
       '--- a/presubmit_support.py\n'
       '+++ b/presubmit_support.py\n'
       '@@ -558,6 +558,7 @@ class SvnAffectedFile(AffectedFile):\n'
       '     AffectedFile.__init__(self, *args, **kwargs)\n'
       '     self._server_path = None\n'
       '     self._is_text_file = None\n'
@@ skipping 27 matching lines @@
       ' \n'
       '   def GenerateScmDiff(self):\n'
       '-    return scm.GIT.GenerateDiff(self._local_root, files=[self.Lo...\n'
       '+    if self._diff is None:\n'
       '+      self._diff = scm.GIT.GenerateDiff(\n'
       '+          self._local_root, files=[self.LocalPath(),])\n'
       '+    return self._diff\n'
       ' \n'
       ' \n'
       ' class Change(object):\n')