Initialize ICU before fuzzing FirstPartySetParser.

Bug: 1146217
Change-Id: I59fda9bb717fad0fe19dc557461b1ca763f436a3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2522895
Commit-Queue: Chris Fredrickson <cfredric@chromium.org>
Reviewed-by: Dan McArdle <dmcardle@chromium.org>
Reviewed-by: Eric Orth <ericorth@chromium.org>
Cr-Commit-Position: refs/heads/master@{#824963}

services/network/first_party_sets/BUILD.gn

@@ -87,6 +87,7 @@ fuzzer_test("first_party_set_parser_fuzzer") {
   deps = [
     ":first_party_sets",
     "//base",
+    "//base:i18n",
     "//net:net_fuzzer_test_support",
   ]
   dict = "test/first_party_set_parser_fuzzer.dict"
@@ -98,6 +99,7 @@ fuzzer_test("first_party_set_parser_json_fuzzer") {
   deps = [
     ":first_party_sets",
     "//base",
+    "//base:i18n",
     "//testing/libfuzzer/proto:json_proto",
     "//testing/libfuzzer/proto:json_proto_converter",
     "//third_party/libprotobuf-mutator",

services/network/first_party_sets/test/first_party_set_parser_fuzzer.cc

@@ -7,6 +7,18 @@
 #include <cstdint>
 #include <memory>
 
+#include "base/at_exit.h"
+#include "base/i18n/icu_util.h"
+
+struct TestCase {
+  TestCase() { CHECK(base::i18n::InitializeICU()); }
+
+  // used by ICU integration.
+  base::AtExitManager at_exit_manager;
+};
+
+TestCase* test_case = new TestCase();
+
 namespace network {
 
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {

services/network/first_party_sets/test/first_party_set_parser_json_fuzzer.cc

@@ -7,10 +7,21 @@
 #include <stdlib.h>
 #include <iostream>
 
+#include "base/at_exit.h"
+#include "base/i18n/icu_util.h"
 #include "testing/libfuzzer/proto/json.pb.h"
 #include "testing/libfuzzer/proto/json_proto_converter.h"
 #include "testing/libfuzzer/proto/lpm_interface.h"
 
+struct TestCase {
+  TestCase() { CHECK(base::i18n::InitializeICU()); }
+
+  // used by ICU integration.
+  base::AtExitManager at_exit_manager;
+};
+
+TestCase* test_case = new TestCase();
+
 DEFINE_PROTO_FUZZER(const json_proto::JsonValue& json_value) {
   json_proto::JsonProtoConverter converter;
   std::string native_input = converter.Convert(json_value);