make SetReceiveBufferSize and SetSendBufferSize return net error codes (instead of bools)

net/socket/ssl_server_socket_unittest.cc

Index: net/socket/ssl_server_socket_unittest.cc
diff --git a/net/socket/ssl_server_socket_unittest.cc b/net/socket/ssl_server_socket_unittest.cc
index 79af3c0a9c42d11f2291402d603d70d5972723a2..92d2efcb01244ba4c677bcc2d99d3a6790d50d20 100644
--- a/net/socket/ssl_server_socket_unittest.cc
+++ b/net/socket/ssl_server_socket_unittest.cc
@@ -178,12 +178,12 @@ class FakeSocket : public StreamSocket {
     return outgoing_->Write(buf, buf_len, callback);
   }
 
-  virtual bool SetReceiveBufferSize(int32 size) OVERRIDE {
-    return true;
+  virtual int SetReceiveBufferSize(int32 size) OVERRIDE {
+    return net::OK;
   }
 
-  virtual bool SetSendBufferSize(int32 size) OVERRIDE {
-    return true;
+  virtual int SetSendBufferSize(int32 size) OVERRIDE {
+    return net::OK;
   }
 
   virtual int Connect(const CompletionCallback& callback) OVERRIDE {