message: Use tf's own mirror for alternative download links
diff: @@ -8,7 +8,7 @@ def repo():
  strip_prefix = "OpenCL-Headers-0d5f18c6e7196863bc1557a693f1509adfcee056",
  sha256 = "03cbc1fd449399be0422cdb021400f63958ef2c5a7c099a0d8f36a705b312f53",
  urls = [
  - "https://mirror.bazel.build/github.com/KhronosGroup/OpenCL-Headers/archive/0d5f18c6e7196863bc1557a693f1509adfcee056.tar.gz",
  + "https://storage.googleapis.com/mirror.tensorflow.org/github.com/KhronosGroup/OpenCL-Headers/archive/0d5f18c6e7196863bc1557a693f1509adfcee056.tar.gz",
  "https://github.com/KhronosGroup/OpenCL-Headers/archive/0d5f18c6e7196863bc1557a693f1509adfcee056.tar.gz",
  ],
  build_file = "//third_party/opencl_headers:BUILD.bazel",
  