Revert of Cross-repo recipe package system.

scripts/slave/recipe_modules/time/api.py

+# 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.
+
+from recipe_engine import recipe_api
+
+import datetime
+import time
+
+class TimeApi(recipe_api.RecipeApi):
+  def __init__(self, **kwargs):
+    super(TimeApi, self).__init__(**kwargs)
+    self._fake_time = None
+    self._fake_step = None
+    if self._test_data.enabled:
+      self._fake_time = self._test_data.get('seed', 1337000000.0)
+      self._fake_step = self._test_data.get('step', 1.5)
+
+  def time(self):
+    """Return current timestamp as a float number of seconds since epoch."""
+    if self._test_data.enabled:
+      self._fake_time += self._fake_step
+      return self._fake_time
+    else:  # pragma: no cover
+      return time.time()
+
+  def utcnow(self):
+    """Return current UTC time as a datetime.datetime."""
+    if self._test_data.enabled:
+      self._fake_time += self._fake_step
+      return datetime.datetime.utcfromtimestamp(self._fake_time)
+    else:  # pragma: no cover
+      return datetime.datetime.utcnow()