deep sync with base library renaming; lint checking; Speedup sat; new crash procedure for glop

ortools/sat/simplification.cc

@@ -21,6 +21,7 @@
 #include "ortools/algorithms/dynamic_partition.h"
 #include "ortools/base/adjustable_priority_queue-inl.h"
 #include "ortools/base/logging.h"
+#include "ortools/base/memory.h"
 #include "ortools/base/random.h"
 #include "ortools/base/stl_util.h"
 #include "ortools/base/timer.h"
@@ -1222,7 +1223,7 @@ SatSolver::Status SolveWithPresolve(std::unique_ptr<SatSolver>* solver,
       VLOG(1) << "UNSAT during presolve.";
 
       // This is just here to reset the SatSolver::Solve() satistics.
-      (*solver).reset(new SatSolver());
+      (*solver) = absl::make_unique<SatSolver>();
       return SatSolver::INFEASIBLE;
     }
 
@@ -1232,7 +1233,7 @@ SatSolver::Status SolveWithPresolve(std::unique_ptr<SatSolver>* solver,
     }
 
     // Load the presolved problem in a new solver.
-    (*solver).reset(new SatSolver());
+    (*solver) = absl::make_unique<SatSolver>();
     (*solver)->SetDratProofHandler(drat_proof_handler);
     (*solver)->SetParameters(parameters);
     presolver.LoadProblemIntoSatSolver((*solver).get());