Basic android app implementation

tools/telemetry/telemetry/user_story/android/__init__.py

Index: tools/telemetry/telemetry/user_story/android/__init__.py
diff --git a/tools/telemetry/telemetry/user_story/android/__init__.py b/tools/telemetry/telemetry/user_story/android/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..1b19cd487182796f51a9ec61ff9cd1ce6d40956e
--- /dev/null
+++ b/tools/telemetry/telemetry/user_story/android/__init__.py
@@ -0,0 +1,37 @@
+# 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 telemetry import user_story
+from telemetry.user_story.android import shared_app_state
+
+class AppStory(user_story.UserStory):
+  def __init__(self, start_intent, name='', labels=None):
+    super(AppStory, self).__init__(
+        shared_app_state.SharedAppState, name, labels)
+    self.start_intent = start_intent
+    self.ready_state_predicate = self._CheckThatProcessHasStarted
+
+  def _CheckThatProcessHasStarted(self):
+    return True

[chrishenry, 2014/12/05 06:21:01]

TODO here or remove ready_state_predicate in this patch. Let's follow up in
subsequent patch.

[slamm, 2014/12/06 00:39:59]

Done.

+
+  def SetReadyStatePredicate(self, predicate_function):
+    """Overrides the default ready state predicate function.
+
+    This is used to determine whether an application has started
+    successfully and reached a state where the user story has run. The
+    default predicate checks whether the process has started. Returns
+    True when the application is ready.
+
+    Here is an example: An app that requires a WebView to start may
+    want to check that the WebView has started before returning True.
+
+    Args:
+      predicate_function: The predicate function that returns True
+          when the application is ready to run the user story.

[chrishenry, 2014/12/05 06:21:01]

(We worked on this pydoc already, so I kept the text in an email--sent to
you--so that we can reuse in subsequent patch.)

[slamm, 2014/12/06 00:39:59]

Done.

+    """    
+    self.ready_state_predicate = predicate_function
+
+  def Run(self):

[chrishenry, 2014/12/05 06:21:01]

Can you add a TODO, to indicate that this would not work yet? Or better yet, add

def RunPageInteractions(self):
  self.Run()

instead of in perf internal. and add a TODO note to fix TBM here.

[slamm, 2014/12/06 00:39:59]

Done.

+    raise NotImplementedError
+