Refactor the way that TestApi works so that it is actually useful.

scripts/slave/recipe_modules/platform/api.py

 # Copyright 2013 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.
 
 import sys
 import platform
 
 from slave import recipe_api
 
 
@@ skipping 25 matching lines @@
   def __init__(self, **kwargs):
     super(PlatformApi, self).__init__(**kwargs)
     self._name = norm_plat(sys.platform)
 
     # Sometimes machine() lies, sometimes process() lies, so take their max.
     machine_bits = norm_bits(platform.machine())
     processor_bits = norm_bits(platform.processor())
     self._bits = max(machine_bits, processor_bits)
     self._arch = 'intel'
 
-    if self._mock is not None:
+    if self._test_data.enabled:
       # Default to linux/64, unless test case says otherwise.
-      self._name = norm_plat(self._mock.get('name', 'linux'))
-      self._bits = norm_bits(self._mock.get('bits', 64))
+      self._name = norm_plat(self._test_data.get('name', 'linux'))
+      self._bits = norm_bits(self._test_data.get('bits', 64))
 
   @property
   def is_win(self):
     return self.name == 'win'
 
   @property
   def is_mac(self):
     return self.name == 'mac'
 
   @property
   def is_linux(self):
     return self.name == 'linux'
 
   @property
   def name(self):
     return self._name
 
   @property
   def bits(self):
     return self._bits
 
   @property
   def arch(self):
     return self._arch