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

remoting/protocol/channel_multiplexer.cc

Index: remoting/protocol/channel_multiplexer.cc
diff --git a/remoting/protocol/channel_multiplexer.cc b/remoting/protocol/channel_multiplexer.cc
index 2988f221ff34f4c0abdfc9d1517c480962dc4902..bf4def4649260d03365bb8aafa637416377c2b25 100644
--- a/remoting/protocol/channel_multiplexer.cc
+++ b/remoting/protocol/channel_multiplexer.cc
@@ -116,18 +116,18 @@ class ChannelMultiplexer::MuxSocket : public net::StreamSocket,
   virtual int Write(net::IOBuffer* buffer, int buffer_len,
                     const net::CompletionCallback& callback) OVERRIDE;
 
-  virtual bool SetReceiveBufferSize(int32 size) OVERRIDE {
+  virtual int SetReceiveBufferSize(int32 size) OVERRIDE {
     NOTIMPLEMENTED();
-    return false;
+    return net::ERR_NOT_IMPLEMENTED;
   }
-  virtual bool SetSendBufferSize(int32 size) OVERRIDE {
+  virtual int SetSendBufferSize(int32 size) OVERRIDE {
     NOTIMPLEMENTED();
-    return false;
+    return net::ERR_NOT_IMPLEMENTED;
   }
 
   virtual int Connect(const net::CompletionCallback& callback) OVERRIDE {
     NOTIMPLEMENTED();
-    return net::ERR_FAILED;
+    return net::ERR_NOT_IMPLEMENTED;
   }
   virtual void Disconnect() OVERRIDE {
     NOTIMPLEMENTED();
@@ -142,11 +142,11 @@ class ChannelMultiplexer::MuxSocket : public net::StreamSocket,
   }
   virtual int GetPeerAddress(net::IPEndPoint* address) const OVERRIDE {
     NOTIMPLEMENTED();
-    return net::ERR_FAILED;
+    return net::ERR_NOT_IMPLEMENTED;
   }
   virtual int GetLocalAddress(net::IPEndPoint* address) const OVERRIDE {
     NOTIMPLEMENTED();
-    return net::ERR_FAILED;
+    return net::ERR_NOT_IMPLEMENTED;
   }
   virtual const net::BoundNetLog& NetLog() const OVERRIDE {
     NOTIMPLEMENTED();