Make FuzzedDataProvider vend std::strings

net/cert/internal/verify_name_match_verifynameinsubtree_fuzzer.cc

Index: net/cert/internal/verify_name_match_verifynameinsubtree_fuzzer.cc
diff --git a/net/cert/internal/verify_name_match_verifynameinsubtree_fuzzer.cc b/net/cert/internal/verify_name_match_verifynameinsubtree_fuzzer.cc
index 1d4ea0485130f2c404ad43f614b253c87043e735..971797eca3a491f9c50402dd9f2acc5ac926efde 100644
--- a/net/cert/internal/verify_name_match_verifynameinsubtree_fuzzer.cc
+++ b/net/cert/internal/verify_name_match_verifynameinsubtree_fuzzer.cc
@@ -11,11 +11,11 @@
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
   base::FuzzedDataProvider fuzzed_data(data, size);
   size_t first_part_size = fuzzed_data.ConsumeUint16();
-  base::StringPiece first_part = fuzzed_data.ConsumeBytes(first_part_size);
-  base::StringPiece second_part = fuzzed_data.ConsumeRemainingBytes();
+  std::string first_part = fuzzed_data.ConsumeBytes(first_part_size);
+  std::string second_part = fuzzed_data.ConsumeRemainingBytes();
 
-  net::der::Input in1(first_part);
-  net::der::Input in2(second_part);
+  net::der::Input in1(&first_part);
+  net::der::Input in2(&second_part);
   bool match = net::VerifyNameInSubtree(in1, in2);
   bool reverse_order_match = net::VerifyNameInSubtree(in2, in1);
   // If both InSubtree matches are true, then in1 == in2 (modulo normalization).