[PoC] Reformat all BUILD.gn and *.gni files with new gn.

testing/libfuzzer/BUILD.gn

Index: testing/libfuzzer/BUILD.gn
diff --git a/testing/libfuzzer/BUILD.gn b/testing/libfuzzer/BUILD.gn
index 519c4a7924f255c04c622fde8da5f1bbf0178c9c..f558def894c2ffb02531dc3419bfefcf889ccad3 100644
--- a/testing/libfuzzer/BUILD.gn
+++ b/testing/libfuzzer/BUILD.gn
@@ -57,8 +57,8 @@ test("dns_record_fuzzer") {
   ]
   deps = [
     ":libfuzzer_main",
-    "//net",
     "//base",
+    "//net",
   ]
 }
 
@@ -68,8 +68,8 @@ test("ftp_ctrl_response_fuzzer") {
   ]
   deps = [
     ":libfuzzer_main",
-    "//net",
     "//base",
+    "//net",
   ]
 }
 
@@ -79,8 +79,8 @@ test("ftp_directory_listing_fuzzer") {
   ]
   deps = [
     ":libfuzzer_main",
-    "//net",
     "//base",
+    "//net",
   ]
 }