Moving net/tools/quic code to net::tools namspace

net/tools/quic/quic_client_session.cc

Index: net/tools/quic/quic_client_session.cc
diff --git a/net/tools/quic/quic_client_session.cc b/net/tools/quic/quic_client_session.cc
index f288ae97952f3b777d6d738acb5210cc9a1a9c2e..a3e18dc50e9ec0cfed52767148e1932fe3c004e7 100644
--- a/net/tools/quic/quic_client_session.cc
+++ b/net/tools/quic/quic_client_session.cc
@@ -12,9 +12,7 @@
 using std::string;
 
 namespace net {
-
-class QuicConnection;
-class ReliableQuicStream;
+namespace tools {
 
 QuicClientSession::QuicClientSession(
     const string& server_hostname,
@@ -61,4 +59,5 @@ ReliableQuicStream* QuicClientSession::CreateIncomingReliableStream(
   return NULL;
 }
 
+}  // namespace tools
 }  // namespace net