Add secure sockets to dart:io

runtime/bin/bin.gypi

Index: runtime/bin/bin.gypi
diff --git a/runtime/bin/bin.gypi b/runtime/bin/bin.gypi
index 00358fd291da4d56936454360bc5a59aaae85abf..084cd516764027c4a932816874121231af07d619 100644
--- a/runtime/bin/bin.gypi
+++ b/runtime/bin/bin.gypi
@@ -472,7 +472,7 @@
       'conditions': [
         ['OS=="win"', {
           'link_settings': {
-            'libraries': [ '-lws2_32.lib', '-lRpcrt4.lib' ],
+            'libraries': [ '-lws2_32.lib', '-lRpcrt4.lib', '-lwinmm.lib' ],
           },
           # Generate an import library on Windows, by exporting a function.
           # Extensions use this import library to link to the API in dart.exe.
@@ -512,7 +512,7 @@
       'conditions': [
         ['OS=="win"', {
           'link_settings': {
-            'libraries': [ '-lws2_32.lib', '-lRpcrt4.lib' ],
+            'libraries': [ '-lws2_32.lib', '-lRpcrt4.lib', '-lwinmm.lib' ],
           },
           # Generate an import library on Windows, by exporting a function.
           # Extensions use this import library to link to the API in dart.exe.
@@ -574,7 +574,7 @@
       'conditions': [
         ['OS=="win"', {
           'link_settings': {
-            'libraries': [ '-lws2_32.lib', '-lRpcrt4.lib' ],
+            'libraries': [ '-lws2_32.lib', '-lRpcrt4.lib', '-lwinmm.lib' ],
           },
         }],
       ],