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

net/socket/transport_client_socket_pool_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/socket/transport_client_socket_pool.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
@@ skipping 1192 matching lines @@
   MockClientSocketFactory::ClientSocketType case_types[] = {
     // This is the IPv6 socket.
     MockClientSocketFactory::MOCK_STALLED_CLIENT_SOCKET,
     // This is the IPv4 socket.
     MockClientSocketFactory::MOCK_PENDING_CLIENT_SOCKET
   };
 
   client_socket_factory_.set_client_socket_types(case_types, 2);
 
   // Resolve an AddressList with a IPv6 address first and then a IPv4 address.
-  host_resolver_->rules()->AddIPLiteralRule(
-      "*", "2:abcd::3:4:ff,2.2.2.2", "");
+  host_resolver_->rules()
+      ->AddIPLiteralRule("*", "2:abcd::3:4:ff,2.2.2.2", std::string());
 
   TestCompletionCallback callback;
   ClientSocketHandle handle;
   int rv = handle.Init("a", low_params_, LOW, callback.callback(), &pool,
                        BoundNetLog());
   EXPECT_EQ(ERR_IO_PENDING, rv);
   EXPECT_FALSE(handle.is_initialized());
   EXPECT_FALSE(handle.socket());
 
   EXPECT_EQ(OK, callback.WaitForResult());
@@ skipping 23 matching lines @@
     MockClientSocketFactory::MOCK_DELAYED_CLIENT_SOCKET,
     // This is the IPv4 socket.
     MockClientSocketFactory::MOCK_STALLED_CLIENT_SOCKET
   };
 
   client_socket_factory_.set_client_socket_types(case_types, 2);
   client_socket_factory_.set_delay(base::TimeDelta::FromMilliseconds(
       TransportConnectJob::kIPv6FallbackTimerInMs + 50));
 
   // Resolve an AddressList with a IPv6 address first and then a IPv4 address.
-  host_resolver_->rules()->AddIPLiteralRule(
-      "*", "2:abcd::3:4:ff,2.2.2.2", "");
+  host_resolver_->rules()
+      ->AddIPLiteralRule("*", "2:abcd::3:4:ff,2.2.2.2", std::string());
 
   TestCompletionCallback callback;
   ClientSocketHandle handle;
   int rv = handle.Init("a", low_params_, LOW, callback.callback(), &pool,
                        BoundNetLog());
   EXPECT_EQ(ERR_IO_PENDING, rv);
   EXPECT_FALSE(handle.is_initialized());
   EXPECT_FALSE(handle.socket());
 
   EXPECT_EQ(OK, callback.WaitForResult());
@@ skipping 12 matching lines @@
                                  kMaxSocketsPerGroup,
                                  histograms_.get(),
                                  host_resolver_.get(),
                                  &client_socket_factory_,
                                  NULL);
 
   client_socket_factory_.set_client_socket_type(
       MockClientSocketFactory::MOCK_DELAYED_CLIENT_SOCKET);
 
   // Resolve an AddressList with only IPv6 addresses.
-  host_resolver_->rules()->AddIPLiteralRule(
-      "*", "2:abcd::3:4:ff,3:abcd::3:4:ff", "");
+  host_resolver_->rules()
+      ->AddIPLiteralRule("*", "2:abcd::3:4:ff,3:abcd::3:4:ff", std::string());
 
   TestCompletionCallback callback;
   ClientSocketHandle handle;
   int rv = handle.Init("a", low_params_, LOW, callback.callback(), &pool,
                        BoundNetLog());
   EXPECT_EQ(ERR_IO_PENDING, rv);
   EXPECT_FALSE(handle.is_initialized());
   EXPECT_FALSE(handle.socket());
 
   EXPECT_EQ(OK, callback.WaitForResult());
@@ skipping 12 matching lines @@
                                  kMaxSocketsPerGroup,
                                  histograms_.get(),
                                  host_resolver_.get(),
                                  &client_socket_factory_,
                                  NULL);
 
   client_socket_factory_.set_client_socket_type(
       MockClientSocketFactory::MOCK_DELAYED_CLIENT_SOCKET);
 
   // Resolve an AddressList with only IPv4 addresses.
-  host_resolver_->rules()->AddIPLiteralRule(
-      "*", "1.1.1.1", "");
+  host_resolver_->rules()->AddIPLiteralRule("*", "1.1.1.1", std::string());
 
   TestCompletionCallback callback;
   ClientSocketHandle handle;
   int rv = handle.Init("a", low_params_, LOW, callback.callback(), &pool,
                        BoundNetLog());
   EXPECT_EQ(ERR_IO_PENDING, rv);
   EXPECT_FALSE(handle.is_initialized());
   EXPECT_FALSE(handle.socket());
 
   EXPECT_EQ(OK, callback.WaitForResult());
   EXPECT_TRUE(handle.is_initialized());
   EXPECT_TRUE(handle.socket());
   IPEndPoint endpoint;
   handle.socket()->GetLocalAddress(&endpoint);
   EXPECT_EQ(kIPv4AddressSize, endpoint.address().size());
   EXPECT_EQ(1, client_socket_factory_.allocation_count());
 }
 
 }  // namespace
 
 }  // namespace net