message: Make SDCA use VariableV1 (locking defaults change).
diff: @@ -204,7 +204,7 @@ class SdcaModel(object):
  with ops.colocate_with(v):
  # TODO(andreasst): remove SDCAOptimizer suffix once bug 30843109
  # is fixed.
  - slot_var = var_ops.Variable(
  + slot_var = var_ops.VariableV1(
  initial_value=array_ops.zeros_like(v.initialized_value(),
  dtypes.float32),
  name=v.op.name + '_unshrinked/SDCAOptimizer')
  @@ -216,7 +216,7 @@ class SdcaModel(object):
  # TODO(andreasst): remove SDCAOptimizer suffix once bug 30843109 is
  # fixed.
  self._slots['unshrinked_' + name].append(
  - var_ops.Variable(
  + var_ops.VariableV1(
  array_ops.zeros_like(var.initialized_value(),
  dtypes.float32),
  name=var.op.name + '_unshrinked/SDCAOptimizer'))
  