Rewrite std::string("") to std::string(), Linux edition.

net/spdy/spdy_session_spdy2_unittest.cc

 // Copyright (c) 2012 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/spdy/spdy_session.h"
 
 #include "net/base/host_cache.h"
 #include "net/base/ip_endpoint.h"
 #include "net/base/net_log_unittest.h"
 #include "net/base/request_priority.h"
@@ skipping 660 matching lines @@
     },
     { "http://images.foo.com",
       "images.foo.com",
       "192.168.0.4,192.168.0.3"
     },
   };
 
   SpdySessionDependencies session_deps;
   session_deps.host_resolver->set_synchronous_mode(true);
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_hosts); i++) {
-    session_deps.host_resolver->rules()->AddIPLiteralRule(test_hosts[i].name,
-        test_hosts[i].iplist, "");
+    session_deps.host_resolver->rules()->AddIPLiteralRule(
+        test_hosts[i].name, test_hosts[i].iplist, std::string());
 
     // This test requires that the HostResolver cache be populated.  Normal
     // code would have done this already, but we do it manually.
     HostResolver::RequestInfo info(HostPortPair(test_hosts[i].name, kTestPort));
     session_deps.host_resolver->Resolve(
         info, &test_hosts[i].addresses, CompletionCallback(), NULL,
         BoundNetLog());
 
     // Setup a HostPortProxyPair
     test_hosts[i].pair = HostPortProxyPair(
@@ skipping 439 matching lines @@
   spdy_stream2->SetDelegate(&delegate2);
 
   spdy_stream1->SendRequest(false);
   spdy_stream2->SendRequest(false);
 
   // Ensure that the streams have not yet been activated and assigned an id.
   EXPECT_EQ(0u, spdy_stream1->stream_id());
   EXPECT_EQ(0u, spdy_stream2->stream_id());
 
   // Ensure we don't crash while closing the session.
-  session->CloseSessionOnError(ERR_ABORTED, true, "");
+  session->CloseSessionOnError(ERR_ABORTED, true, std::string());
 
   EXPECT_TRUE(spdy_stream1->closed());
   EXPECT_TRUE(spdy_stream2->closed());
 
   spdy_stream1 = NULL;
   spdy_stream2 = NULL;
 }
 
 TEST_F(SpdySessionSpdy2Test, VerifyDomainAuthentication) {
   session_deps_.host_resolver->set_synchronous_mode(true);
@@ skipping 420 matching lines @@
       http_session_.get(), session.get(), test_host_port_pair_);
 
   EXPECT_EQ(SpdySession::FLOW_CONTROL_NONE, session->flow_control_state());
   EXPECT_EQ(kSpdyVersion2, session->buffered_spdy_framer_->protocol_version());
   EXPECT_EQ(0, session->session_send_window_size_);
   EXPECT_EQ(0, session->session_recv_window_size_);
   EXPECT_EQ(0, session->session_unacked_recv_window_bytes_);
 }
 
 }  // namespace net