message: Increase shard count on extract_image_patches_grad_test.
  The test sometimes would time out on the nightly MacOS builds.
diff: @@ -3231,7 +3231,7 @@ cuda_py_test(
  name = "extract_image_patches_grad_test",
  size = "medium",
  srcs = ["extract_image_patches_grad_test.py"],
  - shard_count = 9,
  + shard_count = 15,
  tags = ["notap"], # http://b/31080670
  deps = [
  "//tensorflow/python:array_ops",
  