Fix SocketApiTest.SocketUDPExtension problem in some dbg bots.

chrome/common/extensions/api/experimental.socket.idl

Index: chrome/common/extensions/api/experimental.socket.idl
diff --git a/chrome/common/extensions/api/experimental.socket.idl b/chrome/common/extensions/api/experimental.socket.idl
index b42ecf7950fa78f1210da16617c6f64003a9d63f..fa644dd42dad763cc1b75c6d951f0e4e4eb99745 100644
--- a/chrome/common/extensions/api/experimental.socket.idl
+++ b/chrome/common/extensions/api/experimental.socket.idl
@@ -74,6 +74,9 @@
   callback WriteCallback = void (WriteInfo writeInfo);
 
   dictionary RecvFromInfo {
+    // The resultCode returned from the underlying read() call.
+    long resultCode;
+
     // The data received. Warning: will probably become a blob or other
     // appropriate binary-friendly type.
     // TODO(miket): [instanceOf=ArrayBuffer]object data;
@@ -84,7 +87,7 @@
 
   callback RecvFromCallback = void (RecvFromInfo recvFromInfo);
 
-  callback SendToCallback = void (long bytesWritten);
+  callback SendToCallback = void (WriteInfo writeInfo);
 
   interface Functions {
     // Creates a socket of the specified type that will connect to the specified