Add forward declarations of friend'ed classes.

PiperOrigin-RevId: 266863909
This commit is contained in:
Christian Sigg 2019-09-02 23:45:04 -07:00 committed by TensorFlower Gardener
parent 81f99d3c8b
commit 5aa4165460

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@ -29,6 +29,9 @@ limitations under the License.
namespace tensorflow {
namespace jit {
class DeviceInfoCache;
class DeviceSet;
// Instances of DeviceId represent TensorFlow devices as integers.
//
// This helps avoid having to manipulate device names as strings when