Fix "unreachable code" warnings (MSVC warning 4702) in net/.

net/http/http_network_transaction_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/http/http_network_transaction.h"
 
 #include <math.h>  // ceil
 #include <stdarg.h>
 #include <string>
 #include <vector>
@@ skipping 10844 matching lines @@
 #else
 #define MAYBE_UseIPConnectionPoolingWithHostCacheExpiration \
     UseIPConnectionPoolingWithHostCacheExpiration
 #endif
 WRAPPED_TEST_P(HttpNetworkTransactionTest,
                MAYBE_UseIPConnectionPoolingWithHostCacheExpiration) {
 // Times out on Win7 dbg(2) bot. http://crbug.com/124776 . (MAYBE_
 // prefix doesn't work with parametrized tests).
 #if defined(OS_WIN)
   return;
-#endif
-
+#else
   HttpStreamFactory::set_use_alternate_protocols(true);
   HttpStreamFactory::SetNextProtos(SpdyNextProtos());
 
   // Set up a special HttpNetworkSession with a OneTimeCachingHostResolver.
   OneTimeCachingHostResolver host_resolver(HostPortPair("www.gmail.com", 443));
   HttpNetworkSession::Params params =
       SpdySessionDependencies::CreateSessionParams(&session_deps_);
   params.host_resolver = &host_resolver;
   scoped_refptr<HttpNetworkSession> session(CreateSession(&session_deps_));
   SpdySessionPoolPeer pool_peer(session->spdy_session_pool());
@@ skipping 81 matching lines @@
   EXPECT_EQ(OK, callback.WaitForResult());
 
   response = trans2.GetResponseInfo();
   ASSERT_TRUE(response != NULL);
   ASSERT_TRUE(response->headers.get() != NULL);
   EXPECT_EQ("HTTP/1.1 200 OK", response->headers->GetStatusLine());
   EXPECT_TRUE(response->was_fetched_via_spdy);
   EXPECT_TRUE(response->was_npn_negotiated);
   ASSERT_EQ(OK, ReadTransaction(&trans2, &response_data));
   EXPECT_EQ("hello!", response_data);
+#endif
 }
 #undef MAYBE_UseIPConnectionPoolingWithHostCacheExpiration
 
 TEST_P(HttpNetworkTransactionTest, ReadPipelineEvictionFallback) {
   MockRead data_reads1[] = {
     MockRead(SYNCHRONOUS, ERR_PIPELINE_EVICTION),
   };
   MockRead data_reads2[] = {
     MockRead("HTTP/1.0 200 OK\r\n\r\n"),
     MockRead("hello world"),
@@ skipping 1457 matching lines @@
   // established, to let the HTTP request start.
   ASSERT_EQ(OK, http_callback.WaitForResult());
   std::string response_data;
   ASSERT_EQ(OK, ReadTransaction(http_trans.get(), &response_data));
   EXPECT_EQ("falafel", response_data);
 
   EXPECT_EQ(1, GetIdleSocketCountInTransportSocketPool(session));
 }
 
 }  // namespace net