[Android] DeviceUtils change to make Install work without md5 binary.

build/android/pylib/device/device_utils.py

Index: build/android/pylib/device/device_utils.py
diff --git a/build/android/pylib/device/device_utils.py b/build/android/pylib/device/device_utils.py
index f7167cea13a20e9401ff03556d1b4e49b8bddfb2..9a84b2a7db08f714d7f7f7091c03b6aefba204a8 100644
--- a/build/android/pylib/device/device_utils.py
+++ b/build/android/pylib/device/device_utils.py
@@ -818,13 +818,17 @@ class DeviceUtils(object):
     if not real_device_path:
       return [(host_path, device_path)]
 
-    host_hash_tuples = md5sum.CalculateHostMd5Sums([real_host_path])
-    device_paths_to_md5 = (
-        real_device_path if os.path.isfile(real_host_path)
-        else ('%s/%s' % (real_device_path, os.path.relpath(p, real_host_path))
-              for _, p in host_hash_tuples))
-    device_hash_tuples = md5sum.CalculateDeviceMd5Sums(
-        device_paths_to_md5, self)
+    try:
+      host_hash_tuples = md5sum.CalculateHostMd5Sums([real_host_path])
+      device_paths_to_md5 = (
+          real_device_path if os.path.isfile(real_host_path)
+          else ('%s/%s' % (real_device_path, os.path.relpath(p, real_host_path))
+                for _, p in host_hash_tuples))
+      device_hash_tuples = md5sum.CalculateDeviceMd5Sums(
+          device_paths_to_md5, self)
+    except EnvironmentError as e:
+      logging.warning('Error calculating md5: %s' % e)

[perezju, 2015/04/15 09:36:18]

nit: should be logging.warning('Error calculating md5: %s', e) [note the comma,
preferred instead of %; this was discussed somewhere, but forgot the link]

[mikecase (-- gone --), 2015/04/21 16:54:33]

Done.

+      return [(host_path, device_path)]
 
     if os.path.isfile(host_path):
       if (not device_hash_tuples