Change default behavior of --seed to be unix timestamp

third_party/WebKit/Tools/Scripts/webkitpy/common/system/systemhost_mock.py

 # Copyright (c) 2011 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 19 matching lines @@
 
 from webkitpy.common.system.executive_mock import MockExecutive
 from webkitpy.common.system.filesystem_mock import MockFileSystem
 from webkitpy.common.system.platforminfo_mock import MockPlatformInfo
 from webkitpy.common.system.user_mock import MockUser
 from webkitpy.common.system.workspace_mock import MockWorkspace
 
 
 class MockSystemHost(object):
 
-    def __init__(self, log_executive=False, executive_throws_when_run=None,
+    def __init__(self, time_return_val=123, log_executive=False, executive_throws_when_run=None,

[Dirk Pranke, 2016/10/28 14:37:22]

Move time_return_val to the end.

                  os_name=None, os_version=None, executive=None, filesystem=None):
         self.executable = 'python'
         self.executive = executive or MockExecutive(should_log=log_executive, should_throw_when_run=executive_throws_when_run)
         self.filesystem = filesystem or MockFileSystem()
         self.user = MockUser()
         self.platform = MockPlatformInfo()
         if os_name:
             self.platform.os_name = os_name
         if os_version:
             self.platform.os_version = os_version
 
         # FIXME: Should this take pointers to the filesystem and the executive?
         self.workspace = MockWorkspace()
 
         self.stdin = StringIO()
         self.stdout = StringIO()
         self.stderr = StringIO()
         self.environ = {
             'MOCK_ENVIRON_COPY': '1',
             'PATH': '/bin:/mock/bin'
         }
+        self.time_return_val = time_return_val
+
+    def unixtime(self):
+        return self.time_return_val
 
     def print_(self, *args, **kwargs):
         sep = kwargs.get('sep', ' ')
         end = kwargs.get('end', '\n')
         stream = kwargs.get('stream', self.stdout)
         stream.write(sep.join([str(arg) for arg in args]) + end)