message: NFC: Use existing GetMlirBridgeRolloutState helper instead of local
  Both have the same implementation.
diff: @@ -19,43 +19,12 @@ limitations under the License.
  namespace tensorflow {
  -static ConfigProto::Experimental::MlirBridgeRollout GetUserRequest(
  - absl::optional<ConfigProto> config_proto) {
  - // TF1 graphs that do not override Sessions's ConfigProto and TF2 graphs
  - // can enable/disable the graph via tf_mlir_enable_mlir_bridge.
  - auto tf_mlir_enable_mlir_bridge =
  - GetMlirCommonFlags()->tf_mlir_enable_mlir_bridge;
  - if (tf_mlir_enable_mlir_bridge !=
  - ConfigProto::Experimental::MLIR_BRIDGE_ROLLOUT_UNSPECIFIED) {
  - return tf_mlir_enable_mlir_bridge;
  - }
  -
  - // If a ConfigProto was not passed in, we can assume the caller is
  - // checking if TF2 graph should have the bridge enabled / disabled. In that
  - // case, we have already checked tf_mlir_enable_mlir_bridge so it is safe to
  - // return UNSPECIFIED here.
  - if (!config_proto.has_value()) {
  - return ConfigProto::Experimental::MLIR_BRIDGE_ROLLOUT_UNSPECIFIED;
  - }
  -
  - // TF1 graphs that do override Session's ConfigProto and set
  - // ConfigProto's enable_mlir_bridge or mlir_bridge_rollout fields will not
  - // update tf_mlir_enable_mlir_bridge so check their values.
  -
  - // ConfigProto's enable_mlir_bridge defaults to false so only respect it
  - // when it is true.
  - if (config_proto.value().experimental().enable_mlir_bridge()) {
  - return ConfigProto::Experimental::MLIR_BRIDGE_ROLLOUT_ENABLED;
  - }
  - return config_proto.value().experimental().mlir_bridge_rollout();
  -}
  -
  MlirBridgeRolloutPolicy GetMlirBridgeRolloutPolicy(
  const tensorflow::Graph& graph,
  const FunctionLibraryDefinition* function_library,
  absl::optional<ConfigProto> config_proto,
  bool uses_uninitialized_resource_args, bool record_stats) {
  - switch (GetUserRequest(config_proto)) {
  + switch (GetMlirBridgeRolloutState(config_proto)) {
  case ConfigProto::Experimental::MLIR_BRIDGE_ROLLOUT_ENABLED:
  return MlirBridgeRolloutPolicy::kEnabledByUser;
  case ConfigProto::Experimental::MLIR_BRIDGE_ROLLOUT_DISABLED:
  