Make FuzzedDataProvider vend std::strings

third_party/sfntly/fuzzers/subset_font_fuzzer.cc

Index: third_party/sfntly/fuzzers/subset_font_fuzzer.cc
diff --git a/third_party/sfntly/fuzzers/subset_font_fuzzer.cc b/third_party/sfntly/fuzzers/subset_font_fuzzer.cc
index 08383e19c8420d030e6f2342884ccf470de725fa..e86d751887cbffe798b1d66f449662558ee89420 100644
--- a/third_party/sfntly/fuzzers/subset_font_fuzzer.cc
+++ b/third_party/sfntly/fuzzers/subset_font_fuzzer.cc
@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 #include <cstdint>
+#include <string>
 
 #include "base/test/fuzzed_data_provider.h"
 #include "third_party/sfntly/src/cpp/src/sample/chromium/font_subsetter.h"
@@ -13,14 +14,14 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
   base::FuzzedDataProvider fuzzed_data(data, size);
 
   size_t font_name_size = fuzzed_data.ConsumeUint32InRange(0, kMaxFontNameSize);
-  base::StringPiece font_name = fuzzed_data.ConsumeBytes(font_name_size);
+  std::string font_name = fuzzed_data.ConsumeBytes(font_name_size);
 
   size_t font_str_size = fuzzed_data.ConsumeUint32InRange(0, kMaxFontSize);
-  base::StringPiece font_str = fuzzed_data.ConsumeBytes(font_str_size);
+  std::string font_str = fuzzed_data.ConsumeBytes(font_str_size);
   const unsigned char* font_data =
       reinterpret_cast<const unsigned char*>(font_str.data());
 
-  base::StringPiece glyph_ids_str = fuzzed_data.ConsumeRemainingBytes();
+  std::string glyph_ids_str = fuzzed_data.ConsumeRemainingBytes();
   const unsigned int* glyph_ids =
       reinterpret_cast<const unsigned int*>(glyph_ids_str.data());
   size_t glyph_ids_size =