[android] Do not rm test dependencies when doing a full directory push in PushIfNeeded.

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 881 matching lines @@
         else:
           raise Exception('Push failed: %s' % output)
 
     diff_size = 0
     if len(changed_files) <= MAX_INDIVIDUAL_PUSHES:
       diff_size = sum(GetHostSize(f[0]) for f in changed_files)
 
     # TODO(craigdh): Replace this educated guess with a heuristic that
     # approximates the push time for each method.
     if len(changed_files) > MAX_INDIVIDUAL_PUSHES or diff_size > 0.5 * size:
-      # We're pushing everything, remove everything first and then create it.
       self._actual_push_size += size
       if os.path.isdir(host_path):
-        self.RunShellCommand('rm -r %s' % device_path, timeout_time=2 * 60)
         self.RunShellCommand('mkdir -p %s' % device_path)
       Push(host_path, device_path)
     else:
       for f in changed_files:
         Push(f[0], f[1])
       self._actual_push_size += diff_size
 
   def GetPushSizeInfo(self):
     """Get total size of pushes to the device done via PushIfNeeded()
 
@@ skipping 664 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()