Adding App, AndroidApp, AppBackend, AndroidAppBackend, PossibleApp.

tools/telemetry/telemetry/core/android_app.py

Index: tools/telemetry/telemetry/core/android_app.py
diff --git a/tools/telemetry/telemetry/core/android_app.py b/tools/telemetry/telemetry/core/android_app.py
new file mode 100644
index 0000000000000000000000000000000000000000..d360950b4fd03efd6ad9c2a0f12c7f2d0b358962
--- /dev/null
+++ b/tools/telemetry/telemetry/core/android_app.py
@@ -0,0 +1,20 @@
+# Copyright 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.
+
+from telemetry.core import app
+
+
+class AndroidApp(app.App):
+  """A running android app instance that can be controlled in a limited way.
+
+  Be sure to clean up after yourself by calling Close() when you are done with
+  the app. Or better yet:
+    with possible_android_app.Create() as android_app:
+      ... do all your operations on android_app here
+  """
+  def __init__(self, backend, platform_backend):
+    super(AndroidApp, self).__init__(app_backend=backend,
+                                     platform_backend=platform_backend)
+  def Close(self):
+    raise NotImplementedError()