[Android] Only reinstall test apk if needed

build/android/pylib/android_commands.py

Index: build/android/pylib/android_commands.py
diff --git a/build/android/pylib/android_commands.py b/build/android/pylib/android_commands.py
index 65e2681d520c0b261e178546ac56b482f7353dbf..dbc52572f17e88ddca56bd856ed9351d462a507f 100644
--- a/build/android/pylib/android_commands.py
+++ b/build/android/pylib/android_commands.py
@@ -672,7 +672,7 @@ class AndroidCommands(object):
     """
     self.RunShellCommand('input keyevent %d' % keycode)
 
-  def CheckMd5Sum(self, local_path, device_path):
+  def CheckMd5Sum(self, local_path, device_path, ignore_paths=False):

[craigdh, 2013/05/06 16:59:56]

please add a docstring for this function, including the list of args.

[cjhopman, 2013/05/06 22:32:18]

Done.

     assert os.path.exists(local_path), 'Local path not found %s' % local_path
 
     if not self._md5sum_build_dir:
@@ -697,6 +697,10 @@ class AndroidCommands(object):
         ['%s/md5sum_bin_host' % self._md5sum_build_dir, local_path])
     hashes_on_host = _ComputeFileListHash(md5sum_output.splitlines())
 
+    if ignore_paths:
+      hashes_on_device = [h.split()[0] for h in hashes_on_device]
+      hashes_on_host = [h.split()[0] for h in hashes_on_host]
+
     return hashes_on_device == hashes_on_host
 
   def PushIfNeeded(self, local_path, device_path):