Remove timing limitation to set Broadcast, ReceiveBuffer, and SendBuffer options from UDPSocket.

net/udp/udp_socket_win.h

Index: net/udp/udp_socket_win.h
diff --git a/net/udp/udp_socket_win.h b/net/udp/udp_socket_win.h
index bc97d5683655a0fc773d36eadbd535e18c096706..a9b723087567b6b365736531a4e9560c227ea22c 100644
--- a/net/udp/udp_socket_win.h
+++ b/net/udp/udp_socket_win.h
@@ -113,10 +113,10 @@ class NET_EXPORT UDPSocketWin : NON_EXPORTED_BASE(public base::NonThreadSafe) {
   // other processes. Should be called before Bind().
   void AllowAddressReuse();
 
-  // Sets corresponding flags in |socket_options_| to allow sending
-  // and receiving packets to and from broadcast addresses. Should be
-  // called before Bind().
-  void AllowBroadcast();
+  // Sets corresponding flags in |socket_options_| to allow or disallow
+  // sending and receiving packets to and from broadcast addresses.
+  // Returns a net error code.
+  int SetBroadcast(bool broadcast);
 
   // Join the multicast group.
   // |group_address| is the group address to join, could be either
@@ -171,7 +171,9 @@ class NET_EXPORT UDPSocketWin : NON_EXPORTED_BASE(public base::NonThreadSafe) {
   enum SocketOptions {
     SOCKET_OPTION_REUSE_ADDRESS  = 1 << 0,
     SOCKET_OPTION_BROADCAST      = 1 << 1,
-    SOCKET_OPTION_MULTICAST_LOOP = 1 << 2
+    SOCKET_OPTION_MULTICAST_LOOP = 1 << 2,
+    SOCKET_OPTION_RCVBUF_SIZE    = 1 << 3,
+    SOCKET_OPTION_SNDBUF_SIZE    = 1 << 4
   };
 
   class Core;
@@ -203,8 +205,12 @@ class NET_EXPORT UDPSocketWin : NON_EXPORTED_BASE(public base::NonThreadSafe) {
   int InternalSendTo(IOBuffer* buf, int buf_len, const IPEndPoint* address);
 
   // Applies |socket_options_| to |socket_|. Should be called before
-  // Bind().
+  // DoBind().
   int SetSocketOptions();
+  int AllowAddressReuseInternal();
+  int SetBroadcastInternal(bool broadcast);
+  int SetReceiveBufferSizeInternal(int32 size);
+  int SetSendBufferSizeInternal(int32 size);
   int DoBind(const IPEndPoint& address);
   // Binds to a random port on |address|.
   int RandomBind(const IPAddressNumber& address);
@@ -220,6 +226,11 @@ class NET_EXPORT UDPSocketWin : NON_EXPORTED_BASE(public base::NonThreadSafe) {
   // options that should be applied to |socket_| before Bind().
   int socket_options_;
 
+  // Locally cacned value of buffer size. These are automatically applied
+  // when SetSocketOptions() is called.
+  int32 rcvbuf_size_;
+  int32 sndbuf_size_;
+
   // Multicast interface.
   uint32 multicast_interface_;