Expose AppUi from devil utils in browser

telemetry/telemetry/internal/browser/browser.py

 # 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.
 
 import logging
 import sys
 
 from py_utils import cloud_storage  # pylint: disable=import-error
 
 from telemetry.core import exceptions
@@ skipping 288 matching lines @@
     return self._browser_backend.GetAllUnsymbolizedMinidumpPaths()
 
   def SymbolizeMinidump(self, minidump_path):
     """Given a minidump path, this method returns a tuple with the
     first value being whether or not the minidump was able to be
     symbolized and the second being that symbolized dump when true
     and error message when false."""
     return self._browser_backend.SymbolizeMinidump(minidump_path)
 
   @property
+  def supports_app_ui_interactions(self):
+    """True if the browser backend supports app UI interactions."""

[nednguyen, 2017/04/06 16:57:29]

"""True if the browser supports Android app UI interactions."""

[ssid, 2017/04/13 20:07:39]

Done.

+    return self._browser_backend.supports_app_ui_interactions
+
+  @property
+  def app_ui(self):
+    """Returns an AppUi object to interact with app's UI.
+
+       See devil.android.app_ui for the documentation of the API provided."""
+    assert self.supports_app_ui_interactions
+    return self._browser_backend.app_ui
+
+  @property
   def supports_system_info(self):
     return self._browser_backend.supports_system_info
 
   def GetSystemInfo(self):
     """Returns low-level information about the system, if available.
 
        See the documentation of the SystemInfo class for more details."""
     return self._browser_backend.GetSystemInfo()
 
   @property
@@ skipping 37 matching lines @@
     except Exception:
       logging.exception('Failed to get browser standard output:')
     logging.info('*********** END OF BROWSER STANDARD OUTPUT ************')
 
     logging.info('********************* BROWSER LOG *********************')
     try:  # pylint: disable=broad-except
       logging.info(self.GetLogFileContents())
     except Exception:
       logging.exception('Failed to get browser log:')
     logging.info('***************** END OF BROWSER LOG ******************')