Update NSS to 3.16.4. Updated to Chromium's copy of NSS at revision 291806

deps/standalone.deps/DEPS

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 vars = {
   # Use this googlecode_url variable only if there is an internal mirror for it.
   # If you do not know, use the full path while defining your new deps entry.
   "googlecode_url": "http://%s.googlecode.com/svn",
   "dart_branch": "/branches/bleeding_edge",
-  "chromium_url": "http://src.chromium.org/svn",
 
   "gyp_rev": "@1752",
-  "nss_rev": "@257452",
+  "co19_rev": "@761",
+  "chromium_git": "https://chromium.googlesource.com",
 
-  # Stuff needed to run pkg tests.
+  # Revisions of /third_party/* dependencies.
   "fake_async_rev": "@38614",
+  "net_nss_rev": "@bf6305a7aa19bdcf8f590ceb5e16384f9af63745",
+  "nss_rev": "@7b5b6ec41cf9105bd6e1c9a5157982f821282a4c",
   "petitparser_rev" : "@37878",
-
-  # co19 tests.
-  "co19_rev": "@761",
+  "sqlite_rev": "@38811b79f42801662adc0458a25270ab690a6b81",
+  "zlib_rev": "@c3d0a6190f2f8c924a05ab6cc97b8f975bddd33f",
 }
 
 deps = {
   "dart":
     Var("dart_branch") + "/dart",
 
   # co19 tests.
   "dart/tests/co19/src": ((Var("googlecode_url") % "co19") +
       "/trunk/co19/tests/co19/src" + Var("co19_rev")),
 
   # Stuff needed for GYP to run.
   "dart/third_party/gyp":
     "http://gyp.googlecode.com/svn/trunk" + Var("gyp_rev"),
 
   # Stuff needed for secure sockets.
   "dart/third_party/nss":
-      Var("chromium_url") + "/trunk/deps/third_party/nss" + Var("nss_rev"),
+      Var("chromium_git") + "/chromium/deps/nss.git" + Var("nss_rev"),
 
   "dart/third_party/sqlite":
-      Var("chromium_url") + "/trunk/src/third_party/sqlite" + Var("nss_rev"),
+      Var("chromium_git") + "/chromium/src/third_party/sqlite.git" +
+      Var("sqlite_rev"),
 
   "dart/third_party/zlib":
-      Var("chromium_url") + "/trunk/src/third_party/zlib" + Var("nss_rev"),
+      Var("chromium_git") + "/chromium/src/third_party/zlib.git" +
+      Var("zlib_rev"),
 
   "dart/third_party/net_nss":
-      Var("chromium_url") + "/trunk/src/net/third_party/nss" + Var("nss_rev"),
+      Var("chromium_git") + "/chromium/src/net/third_party/nss.git" +
+      Var("net_nss_rev"),
 
   # Stuff needed to run pkg tests.
   "dart/third_party/pkg/fake_async":
       "/third_party/fake_async" + Var("fake_async_rev"),
   "dart/third_party/pkg/petitparser":
       "/third_party/petitparser" + Var("petitparser_rev"),
 }
 
 deps_os = {
   "win": {
     "third_party/cygwin":
-      Var("chromium_url") + "/trunk/deps/third_party/cygwin@66844",
+      Var("chromium_git") + "/chromium/deps/cygwin.git" +
+      "@c89e446b273697fadf3a10ff1007a97c0b7de6df",
   },
 }
 
 hooks = [
   {
     "pattern": ".",
     "action": ["python", "dart/tools/gyp_dart.py", "runtime"],
   },
 ]