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

net/http/http_vary_data_unittest.cc

 // Copyright (c) 2006-2008 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 <algorithm>
 
 #include "net/http/http_request_info.h"
 #include "net/http/http_response_headers.h"
 #include "net/http/http_vary_data.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 23 matching lines @@
   // All of these responses should result in an invalid vary data object.
   const char* kTestResponses[] = {
     "HTTP/1.1 200 OK\n\n",
     "HTTP/1.1 200 OK\nVary: *\n\n",
     "HTTP/1.1 200 OK\nVary: cookie, *, bar\n\n",
     "HTTP/1.1 200 OK\nVary: cookie\nFoo: 1\nVary: *\n\n",
   };
 
   for (size_t i = 0; i < arraysize(kTestResponses); ++i) {
     TestTransaction t;
-    t.Init("", kTestResponses[i]);
+    t.Init(std::string(), kTestResponses[i]);
 
     net::HttpVaryData v;
     EXPECT_FALSE(v.is_valid());
     EXPECT_FALSE(v.Init(t.request, *t.response));
     EXPECT_FALSE(v.is_valid());
   }
 }
 
 TEST(HttpVaryDataTest, MultipleInit) {
   net::HttpVaryData v;
@@ skipping 83 matching lines @@
   a.Init("Cookie: 1", "HTTP/1.1 301 Moved\nLocation: x\nVary: coOkie\n\n");
 
   TestTransaction b;
   b.Init("Cookie: 2", "HTTP/1.1 301 Moved\nLocation: x\nVary: cooKie\n\n");
 
   net::HttpVaryData v;
   EXPECT_TRUE(v.Init(a.request, *a.response));
 
   EXPECT_FALSE(v.MatchesRequest(b.request, *b.response));
 }