Add fallback to DEPS from a missing deps file.

tests/gclient_smoketest.py

 #!/usr/bin/env python
 # 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.
 
 """Smoke tests for gclient.py.
 
 Shell out 'gclient' and run basic conformance tests.
 
 This test assumes GClientSmokeBase.URL_BASE is valid.
@@ skipping 687 matching lines @@
                   'DEPS.alt'])
     self.gclient(['sync'])
     results = self.gclient(['revinfo', '--snapshot'])
     out = ('# Snapshot generated with gclient revinfo --snapshot\n'
            'solutions = [\n'
            '  { "name"        : "src",\n'
            '    "url"         : "%(base)s/src",\n'
            '    "deps_file"   : "DEPS.alt",\n'
            '    "managed"     : True,\n'
            '    "custom_deps" : {\n'
+           '      "foo/bar": None,\n'
+           '      "invalid": None,\n'
            '      "src/other2": \'%(base)s/other@2\',\n'
            '    },\n'
            '    "safesync_url": "",\n'
            '  },\n'
            ']\n\n' %
           { 'base': self.svn_base + 'trunk' })
     self.check((out, '', 0), results)
 
 
   def testWrongDirectory(self):
@@ skipping 877 matching lines @@
 
   if '-c' in sys.argv:
     COVERAGE = True
     sys.argv.remove('-c')
     if os.path.exists('.coverage'):
       os.remove('.coverage')
     os.environ['COVERAGE_FILE'] = os.path.join(
         os.path.dirname(os.path.dirname(os.path.abspath(__file__))),
         '.coverage')
   unittest.main()