Add static domain security state generator tool.

net/net.gypi

Index: net/net.gypi
diff --git a/net/net.gypi b/net/net.gypi
index cb983a25aab6a0083a145eb5c62258356482f4d9..bae8fc00e88ae2d61c0fe2a1ac74cff5863e2776 100644
--- a/net/net.gypi
+++ b/net/net.gypi
@@ -3530,5 +3530,28 @@
       'third_party/nist-pkits/crls/requireExplicitPolicy7subsubCARE2RE4CRL.crl',
       'third_party/nist-pkits/crls/requireExplicitPolicy7subsubsubCARE2RE4CRL.crl',
     ],
+    'net_domain_security_state_generator_sources': [
+      'tools/domain_security_preload_generator/bit_writer.cc',
+      'tools/domain_security_preload_generator/bit_writer.h',
+      'tools/domain_security_preload_generator/cert_util.cc',
+      'tools/domain_security_preload_generator/cert_util.h',
+      'tools/domain_security_preload_generator/domain_security_entry.cc',
+      'tools/domain_security_preload_generator/domain_security_entry.h',
+      'tools/domain_security_preload_generator/domain_security_preload_generator.cc',
+      'tools/domain_security_preload_generator/huffman/huffman_frequency_tracker.cc',
+      'tools/domain_security_preload_generator/huffman/huffman_frequency_tracker.h',
+      'tools/domain_security_preload_generator/pinset.cc',
+      'tools/domain_security_preload_generator/pinset.h',
+      'tools/domain_security_preload_generator/pinsets.cc',
+      'tools/domain_security_preload_generator/pinsets.h',
+      'tools/domain_security_preload_generator/preloaded_state_generator.cc',
+      'tools/domain_security_preload_generator/preloaded_state_generator.h',
+      'tools/domain_security_preload_generator/spki_hash.cc',
+      'tools/domain_security_preload_generator/spki_hash.h',
+      'tools/domain_security_preload_generator/trie/trie_bit_buffer.cc',
+      'tools/domain_security_preload_generator/trie/trie_bit_buffer.h',
+      'tools/domain_security_preload_generator/trie/trie_writer.cc',
+      'tools/domain_security_preload_generator/trie/trie_writer.h',
+    ],
   }
 }