Fix BUILD.gn for pdf_jpx_fuzzer.

testing/libfuzzer/BUILD.gn

Index: testing/libfuzzer/BUILD.gn
diff --git a/testing/libfuzzer/BUILD.gn b/testing/libfuzzer/BUILD.gn
index 0fb43f2790991d6dbb2099a0aaa79d581fc43286..0ee8b29e38009407ea2025f9da57bfa83dffd902 100644
--- a/testing/libfuzzer/BUILD.gn
+++ b/testing/libfuzzer/BUILD.gn
@@ -47,18 +47,19 @@ if (pdf_enable_xfa) {
       ":libfuzzer_config",
     ]
   }
-  source_set("pdf_jpx_fuzzer") {
-    testonly = true
-    sources = [
-      "pdf_jpx_fuzzer.cc",
-    ]
-    deps = [
-      "//third_party/pdfium:pdfium",
-    ]
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [
-      "//build/config/compiler:no_chromium_code",
-      ":libfuzzer_config",
-    ]
-  }
+}
+
+source_set("pdf_jpx_fuzzer") {
+  testonly = true
+  sources = [
+    "pdf_jpx_fuzzer.cc",
+  ]
+  deps = [
+    "//third_party/pdfium:pdfium",
+  ]
+  configs -= [ "//build/config/compiler:chromium_code" ]
+  configs += [
+    "//build/config/compiler:no_chromium_code",
+    ":libfuzzer_config",
+  ]
 }