message: resnet_size_test: Update with new lower memory bounds
  Summary:
  After D25074 the memory consumption here is quite a bit lower.
  Ref T17787.
  Test Plan: Test passes.
  Reviewers: #tensorflow, #framework_ip_review_-_any_oss_or_third-party_code_use_has_been_approved, georgep
  Maniphest Tasks: T17787
diff: @@ -187,7 +187,7 @@ class Resnet18_No_Batchnorm(xla_test.XLATestCase):
  sess.run(train, feed_dict={x: data, y_: labels})
  report.parse_log()
  - report.assert_total_tile_memory(40767817)
  + report.assert_total_tile_memory(38642237)
  def testTrainingInLoop(self):
  with self.session() as sess:
  @@ -258,7 +258,7 @@ class Resnet18_No_Batchnorm(xla_test.XLATestCase):
  sess.run(train, feed_dict={x: data, y_: labels})
  report.parse_log()
  - report.assert_total_tile_memory(42827984)
  + report.assert_total_tile_memory(40885054)
  def testTrainingInLoopWithGradientAccumulation(self):
  with self.session() as sess:
  @@ -331,7 +331,7 @@ class Resnet18_No_Batchnorm(xla_test.XLATestCase):
  sess.run(train, feed_dict={x: data, y_: labels})
  report.parse_log()
  - report.assert_total_tile_memory(44320222)
  + report.assert_total_tile_memory(42413354)
  if __name__ == "__main__":
  