Add unittests for certificate and file parsing.

net/tools/transport_security_state_generator/BUILD.gn

Index: net/tools/transport_security_state_generator/BUILD.gn
diff --git a/net/tools/transport_security_state_generator/BUILD.gn b/net/tools/transport_security_state_generator/BUILD.gn
index 05db192a5f2ebaf8ce5c2e1f4b15c3dea39056e7..06bfd8b4be9f1239e6b3e723c4cb0cad4e7d8e29 100644
--- a/net/tools/transport_security_state_generator/BUILD.gn
+++ b/net/tools/transport_security_state_generator/BUILD.gn
@@ -12,6 +12,8 @@ source_set("transport_security_state_generator_sources") {
     "cert_util.h",
     "huffman/huffman_builder.cc",
     "huffman/huffman_builder.h",
+    "input_file_parsers.cc",
+    "input_file_parsers.h",
     "pinset.cc",
     "pinset.h",
     "pinsets.cc",
@@ -37,7 +39,9 @@ source_set("transport_security_state_generator_test_sources") {
   testonly = true
   sources = [
     "bit_writer_unittest.cc",
+    "cert_util_unittest.cc",
     "huffman/huffman_builder_unittest.cc",
+    "input_file_parsers_unittest.cc",
     "spki_hash_unittest.cc",
     "trie/trie_bit_buffer_unittest.cc",
   ]
@@ -47,6 +51,7 @@ source_set("transport_security_state_generator_test_sources") {
     "//base/test:test_support",
     "//testing/gmock",
     "//testing/gtest",
+    "//third_party/boringssl",
   ]
 }