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

chrome/test/webdriver/webdriver_dispatch_unittest.cc

 // Copyright (c) 2011 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 "base/format_macros.h"
 #include "base/json/json_reader.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/stringprintf.h"
 #include "base/values.h"
 #include "chrome/test/webdriver/commands/response.h"
@@ skipping 140 matching lines @@
 
 class ParseRequestInfoTest : public testing::Test {
  public:
   static char kGet[];
   static char kTestPath[];
 
   ParseRequestInfoTest() {}
   virtual ~ParseRequestInfoTest() {}
 
   virtual void TearDown() {
-    SessionManager::GetInstance()->set_url_base("");
+    SessionManager::GetInstance()->set_url_base(std::string());
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ParseRequestInfoTest);
 };
 
 char ParseRequestInfoTest::kGet[] = "GET";
 char ParseRequestInfoTest::kTestPath[] = "/foo/bar/baz";
 
 TEST_F(ParseRequestInfoTest, ParseRequestWithEmptyUrlBase) {
   struct mg_request_info request_info;
   request_info.request_method = kGet;
   request_info.uri = kTestPath;
 
   std::string method;
   std::vector<std::string> path_segments;
   base::DictionaryValue* parameters;
   Response response;
 
-  SessionManager::GetInstance()->set_url_base("");
+  SessionManager::GetInstance()->set_url_base(std::string());
   EXPECT_TRUE(internal::ParseRequestInfo(
       &request_info,
       NULL,  // NULL is ok because GET not POST is used
       &method,
       &path_segments,
       &parameters,
       &response));
   EXPECT_EQ("GET", method);
   ASSERT_EQ(4u, path_segments.size());
   EXPECT_EQ("", path_segments[0]);
@@ skipping 21 matching lines @@
       &parameters,
       &response));
   EXPECT_EQ("GET", method);
   ASSERT_EQ(3u, path_segments.size());
   EXPECT_EQ("", path_segments[0]);
   EXPECT_EQ("bar", path_segments[1]);
   EXPECT_EQ("baz", path_segments[2]);
 }
 
 }  // namespace webdriver