tree 1118e21a0dddb78421205475f54540e8b75732e1
parent 698fb7a6d2bcd79ffdc7a0e0b8787ef50259edd0
author Saurabh Saxena <srbs@google.com> 1595440948 -0700
committer TensorFlower Gardener <gardener@tensorflow.org> 1595441425 -0700

Change cpp gradient function signature to accept a `Context` which contains the local context when calling the gradient function e.g. the default graph.
In python gradients, this state is managed via singletons(global context manager stacks) and is implicitly captured.

PiperOrigin-RevId: 322611049
Change-Id: I26fe086a687e4989a96f18baed1ccfe2ec7b7c1e