Port more unit tests in net/http/

net/http/http_network_layer.cc

Index: net/http/http_network_layer.cc
===================================================================
--- net/http/http_network_layer.cc	(revision 2439)
+++ net/http/http_network_layer.cc	(working copy)
@@ -4,10 +4,14 @@
 
 #include "net/http/http_network_layer.h"
 
+#include "base/basictypes.h"
 #include "base/logging.h"
 #include "net/base/client_socket_factory.h"
 #include "net/http/http_network_session.h"
+// TODO(port): Port http_network_transaction and remove #if.
+#if defined(OS_WIN)
 #include "net/http/http_network_transaction.h"
+#endif
 #include "net/proxy/proxy_resolver_fixed.h"
 #if defined(OS_WIN)
 #include "net/http/http_transaction_winhttp.h"
@@ -63,11 +67,16 @@
 }
 
 HttpTransaction* HttpNetworkLayer::CreateTransaction() {
+#if defined(OS_WIN)
   if (suspended_)
     return NULL;
 
   return new HttpNetworkTransaction(
       session_, ClientSocketFactory::GetDefaultFactory());
+#else
+  NOTIMPLEMENTED();
+  return NULL;
+#endif
 }
 
 HttpCache* HttpNetworkLayer::GetCache() {