Merge commit 'fe3ce96d88108e2bf04fef5144aef6799bff0fd4' as 'third_party/ceres'

Change-Id: If68cedf50907419e1e91f92f7ae9945d7357dc7b
diff --git a/WORKSPACE b/WORKSPACE
index a9880e0..394c856 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -324,3 +324,8 @@
     name = "com_github_google_benchmark",
     path = "third_party/google-benchmark",
 )
+
+local_repository(
+    name = "com_google_ceres_solver",
+    path = "third_party/ceres",
+)