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

chrome/browser/policy/url_blacklist_manager_unittest.cc

Index: chrome/browser/policy/url_blacklist_manager_unittest.cc
diff --git a/chrome/browser/policy/url_blacklist_manager_unittest.cc b/chrome/browser/policy/url_blacklist_manager_unittest.cc
index 3e5ac0f52614212f9d8edb9ad1f5d267681f0a7d..b1f69d11139d9b645e3b146c56d66bfbf8e1b2ea 100644
--- a/chrome/browser/policy/url_blacklist_manager_unittest.cc
+++ b/chrome/browser/policy/url_blacklist_manager_unittest.cc
@@ -240,31 +240,83 @@ INSTANTIATE_TEST_CASE_P(
     URLBlacklistFilterToComponentsTest,
     testing::Values(
         FilterTestParams("google.com",
-                         "", ".google.com", true, 0u, ""),
+                         std::string(),
+                         ".google.com",
+                         true,
+                         0u,
+                         std::string()),
         FilterTestParams(".google.com",
-                         "", "google.com", false, 0u, ""),
+                         std::string(),
+                         "google.com",
+                         false,
+                         0u,
+                         std::string()),
         FilterTestParams("http://google.com",
-                         "http", ".google.com", true, 0u, ""),
+                         "http",
+                         ".google.com",
+                         true,
+                         0u,
+                         std::string()),
         FilterTestParams("google.com/",
-                         "", ".google.com", true, 0u, "/"),
+                         std::string(),
+                         ".google.com",
+                         true,
+                         0u,
+                         "/"),
         FilterTestParams("http://google.com:8080/whatever",
-                         "http", ".google.com", true, 8080u, "/whatever"),
+                         "http",
+                         ".google.com",
+                         true,
+                         8080u,
+                         "/whatever"),
         FilterTestParams("http://user:pass@google.com:8080/whatever",
-                         "http", ".google.com", true, 8080u, "/whatever"),
+                         "http",
+                         ".google.com",
+                         true,
+                         8080u,
+                         "/whatever"),
         FilterTestParams("123.123.123.123",
-                         "", "123.123.123.123", false, 0u, ""),
+                         std::string(),
+                         "123.123.123.123",
+                         false,
+                         0u,
+                         std::string()),
         FilterTestParams("https://123.123.123.123",
-                         "https", "123.123.123.123", false, 0u, ""),
+                         "https",
+                         "123.123.123.123",
+                         false,
+                         0u,
+                         std::string()),
         FilterTestParams("123.123.123.123/",
-                         "", "123.123.123.123", false, 0u, "/"),
+                         std::string(),
+                         "123.123.123.123",
+                         false,
+                         0u,
+                         "/"),
         FilterTestParams("http://123.123.123.123:123/whatever",
-                         "http", "123.123.123.123", false, 123u, "/whatever"),
+                         "http",
+                         "123.123.123.123",
+                         false,
+                         123u,
+                         "/whatever"),
         FilterTestParams("*",
-                         "", "", true, 0u, ""),
+                         std::string(),
+                         std::string(),
+                         true,
+                         0u,
+                         std::string()),
         FilterTestParams("ftp://*",
-                         "ftp", "", true, 0u, ""),
+                         "ftp",
+                         std::string(),
+                         true,
+                         0u,
+                         std::string()),
         FilterTestParams("http://*/whatever",
-                         "http", "", true, 0u, "/whatever")));
+                         "http",
+                         std::string(),
+                         true,
+                         0u,
+                         "/whatever")));
 
 TEST_F(URLBlacklistManagerTest, Filtering) {
   URLBlacklist blacklist;