Add AMP support to test runner.

build/android/pylib/base/environment_factory.py

Index: build/android/pylib/base/environment_factory.py
diff --git a/build/android/pylib/base/environment_factory.py b/build/android/pylib/base/environment_factory.py
index ad2eafd6b0c1e3229ca3a8d0f2fef402fcbcc309..5414fe66e57de8e5e70389d0a969e7abe465d3f5 100644
--- a/build/android/pylib/base/environment_factory.py
+++ b/build/android/pylib/base/environment_factory.py
@@ -2,10 +2,14 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+from pylib.base import remote_device_environment
 
 def CreateEnvironment(_command, _options, error_func):
 
   # TODO(jbudorick) Add local device environment.
   # TODO(jbudorick) Add local machine environment.
-  error_func('No environments currently supported.')
 
+  if _options.environment == 'remote_device':
+    return remote_device_environment.RemoteDeviceEnvironment(_options,
+                                                             error_func)
+  error_func('Unable to create %s environment.' % _options.environment)