Android: Always push md5sum_bin to the device.

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 530 matching lines @@
     assert os.path.exists(local_path), 'Local path not found %s' % local_path
 
     if not self._md5sum_path:
       default_build_type = os.environ.get('BUILD_TYPE', 'Debug')
       md5sum_path = '%s/out/%s/md5sum_bin' % (CHROME_SRC, default_build_type)
       if not os.path.exists(md5sum_path):
         md5sum_path = '%s/out/Release/md5sum_bin' % (CHROME_SRC)
         if not os.path.exists(md5sum_path):
           print >>sys.stderr, 'Please build md5sum.'
           sys.exit(1)
-      if not self.FileExistsOnDevice(MD5SUM_DEVICE_PATH):
-        command = 'push %s %s' % (md5sum_path, MD5SUM_DEVICE_PATH)
-        assert _HasAdbPushSucceeded(self._adb.SendCommand(command))
+      command = 'push %s %s' % (md5sum_path, MD5SUM_DEVICE_PATH)
+      assert _HasAdbPushSucceeded(self._adb.SendCommand(command))
       self._md5sum_path = md5sum_path
 
     self._pushed_files.append(device_path)
     hashes_on_device = _ComputeFileListHash(
         self.RunShellCommand(MD5SUM_DEVICE_PATH + ' ' + device_path))
     assert os.path.exists(local_path), 'Local path not found %s' % local_path
     hashes_on_host = _ComputeFileListHash(
         subprocess.Popen(
             '%s_host %s' % (self._md5sum_path, local_path),
             stdout=subprocess.PIPE, shell=True).stdout)
@@ skipping 466 matching lines @@
            ' '.join(['-c %s' % c for c in category]),
            '--throttle %d' % throttle,
            '-s %d' % seed,
            '-v ' * verbosity,
            '--monitor-native-crashes',
            '--kill-process-after-error',
            extra_args,
            '%d' % event_count]
     return self.RunShellCommand(' '.join(cmd),
                                 timeout_time=event_count*throttle*1.5)