Restart app before running monkey test.

build/android/pylib/android_commands.py

 # Copyright (c) 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.
 
 """Provides an interface to communicate with the device via the adb command.
 
 Assumes adb binary is currently on system path.
 """
 
 import collections
@@ skipping 490 matching lines @@
       while self.ExtractPid(process) and elapsed < timeout_sec:
         time.sleep(wait_period)
         elapsed += wait_period
       if elapsed >= timeout_sec:
         return 0
     return processes_killed
 
   def StartActivity(self, package, activity, wait_for_completion=False,
                     action='android.intent.action.VIEW',
                     category=None, data=None,
-                    extras=None, trace_file_name=None):
+                    extras=None, trace_file_name=None,
+                    force_stop=False):
     """Starts |package|'s activity on the device.
 
     Args:
       package: Name of package to start (e.g. 'com.google.android.apps.chrome').
       activity: Name of activity (e.g. '.Main' or
         'com.google.android.apps.chrome.Main').
       wait_for_completion: wait for the activity to finish launching (-W flag).
       action: string (e.g. "android.intent.action.MAIN"). Default is VIEW.
       category: string (e.g. "android.intent.category.HOME")
       data: Data string to pass to activity (e.g. 'http://www.example.com/').
       extras: Dict of extras to pass to activity. Values are significant.
       trace_file_name: If used, turns on and saves the trace to this file name.
+      force_stop: force stop the target app before starting the activity (-S
+        flag).
     """
     cmd = 'am start -a %s' % action
+    if force_stop:
+      cmd += ' -S'
     if wait_for_completion:
       cmd += ' -W'
     if category:
       cmd += ' -c %s' % category
     if package and activity:
       cmd += ' -n %s/%s' % (package, activity)
     if data:
       cmd += ' -d "%s"' % data
     if extras:
       for key in extras:
@@ skipping 537 matching lines @@
   """
   def __init__(self, output):
     self._output = output
 
   def write(self, data):
     data = data.replace('\r\r\n', '\n')
     self._output.write(data)
 
   def flush(self):
     self._output.flush()
-