Fix build for tokenized_string_fuzzer

Bug: 1105896
Change-Id: I426f48b4d15b767f4eed2f0a5433efcde7d7bb7a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2299822
Commit-Queue: Thanh Nguyen <thanhdng@chromium.org>
Reviewed-by: Jia Meng <jiameng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#788897}

chrome/test/BUILD.gn

@@ -6882,16 +6882,6 @@ if (is_win) {
   }
 }
 
-if (is_chromeos) {
-  fuzzer_test("tokenized_string_fuzzer") {
-    sources = [ "../common/string_matching/tokenized_string_fuzzer.cc" ]
-    deps = [
-      "//base",
-      "//chrome/common/string_matching",
-    ]
-  }
-}
-
 if (is_win) {
   test("pixel_browser_tests") {
     sources = [ "pixel/demo/skia_gold_demo_pixeltest.cc" ]

chromeos/components/string_matching/BUILD.gn

@@ -2,6 +2,8 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import("//testing/libfuzzer/fuzzer_test.gni")
+
 assert(is_chromeos, "Non-ChromeOS builds cannot depend on //chromeos")
 
 source_set("string_matching") {
@@ -50,3 +52,11 @@ source_set("unit_tests") {
     "//testing/gtest",
   ]
 }
+
+fuzzer_test("tokenized_string_fuzzer") {
+  sources = [ "tokenized_string_fuzzer.cc" ]
+  deps = [
+    ":string_matching",
+    "//base",
+  ]
+}

chromeos/components/string_matching/tokenized_string_fuzzer.cc

@@ -12,6 +12,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
   // Test for base::string16 if size is even.
   base::string16 string_input16(reinterpret_cast<const base::char16*>(data),
                                 size / 2);
-  TokenizedString tokenized_string_from_string16(string_input16);
+  chromeos::string_matching::TokenizedString tokenized_string_from_string16(
+      string_input16);
   return 0;
 }