Remove timing limitation of SetOption invocation for PPAPI sockets.

net/udp/udp_socket_libevent.h

Index: net/udp/udp_socket_libevent.h
diff --git a/net/udp/udp_socket_libevent.h b/net/udp/udp_socket_libevent.h
index 2ac564debc533752d038b81a9b76312ecf0cc920..3e9cc4720cbacf389e6e903ac9e80264e551dfb3 100644
--- a/net/udp/udp_socket_libevent.h
+++ b/net/udp/udp_socket_libevent.h
@@ -94,9 +94,11 @@ class NET_EXPORT UDPSocketLibevent : public base::NonThreadSafe {
              const CompletionCallback& callback);
 
   // Set the receive buffer size (in bytes) for the socket.
+  // Returns a net error code.
   int SetReceiveBufferSize(int32 size);
 
   // Set the send buffer size (in bytes) for the socket.
+  // Returns a net error code.
   int SetSendBufferSize(int32 size);
 
   // Returns true if the socket is already connected or bound.
@@ -104,15 +106,23 @@ class NET_EXPORT UDPSocketLibevent : public base::NonThreadSafe {
 
   const BoundNetLog& NetLog() const { return net_log_; }
 
-  // Sets corresponding flags in |socket_options_| to allow the socket
-  // to share the local address to which the socket will be bound with
-  // other processes. Should be called before Bind().
-  void AllowAddressReuse();
+  // Allows the socket to share the local address to which the socket will be
+  // bound with other processes.
+  // Returns a net error code.
+  int AllowAddressReuse();
+
+  // Disallows the socket to share the local address to which the socket will
+  // be bound with other processes.
+  // Returns a net error code.
+  int DisallowAddressReuse();
+
+  // Allows sending and receiving packets to and from broadcast addresses.
+  // Returns a net error code.
+  int AllowBroadcast();
 
-  // Sets corresponding flags in |socket_options_| to allow sending
-  // and receiving packets to and from broadcast addresses. Should be
-  // called before Bind().
-  void AllowBroadcast();
+  // Disallows sending and receiving packets to and from broadcast addresses.
+  // Returns a net error code.
+  int DisallowBroadcast();
 
   // Join the multicast group.
   // |group_address| is the group address to join, could be either
@@ -170,7 +180,9 @@ class NET_EXPORT UDPSocketLibevent : 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 ReadWatcher : public base::MessageLoopForIO::Watcher {
@@ -234,8 +246,13 @@ class NET_EXPORT UDPSocketLibevent : 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 SetAddressReuseInternal(bool address_reuse);
+  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);
@@ -247,6 +264,11 @@ class NET_EXPORT UDPSocketLibevent : public base::NonThreadSafe {
   // options that should be applied to |socket_| before Bind().
   int socket_options_;
 
+  // Locally cached value of buffere size. These are automatically applied
+  // when SetSocketOptions() is called.
+  int32 rcvbuf_size_;
+  int32 sndbuf_size_;
+
   // Multicast interface.
   uint32 multicast_interface_;