message: Update the build dependency for feature column.
diff: @@ -80,16 +80,20 @@ py_library(
  "//tensorflow/python:sparse_tensor",
  "//tensorflow/python:string_ops",
  "//tensorflow/python:tensor_shape",
  + "//tensorflow/python:tf_export",
  "//tensorflow/python:training",
  "//tensorflow/python:util",
  "//tensorflow/python:variable_scope",
  "//tensorflow/python:variables",
  "//tensorflow/python/eager:context",
  - "//tensorflow/python/keras:base_layer",
  - "//tensorflow/python/keras:engine",
  + "//tensorflow/python/keras:backend",
  "//tensorflow/python/keras:initializers",
  + "//tensorflow/python/keras/engine",
  + "//tensorflow/python/keras/engine:base_layer",
  + "//tensorflow/python/keras/layers",
  "//tensorflow/python/keras/utils:generic_utils",
  "//tensorflow/python/training/tracking",
  + "//tensorflow/python/training/tracking:data_structures",
  "//third_party/py/numpy",
  "@six_archive//:six",
  ],
  @@ -295,8 +299,8 @@ tf_py_test(
  srcs = ["save_test.py"],
  python_version = "PY3",
  deps = [
  + ":feature_column_v2",
  "//tensorflow/python:client_testlib",
  - "//tensorflow/python/feature_column:feature_column_v2",
  "//tensorflow/python/keras",
  "//tensorflow/python/keras:combinations",
  "//third_party/py/numpy",
  