iwyu: Include stringprintf.h where appropriate, part 3.

chrome/browser/process_singleton_linux_uitest.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 "chrome/browser/process_singleton.h"
 
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <signal.h>
 #include <unistd.h>
 #include <vector>
 #include <string>
 
 #include "base/eintr_wrapper.h"
 #include "base/path_service.h"
-#include "base/string_util.h"
+#include "base/stringprintf.h"
 #include "base/test/test_timeouts.h"
 #include "base/threading/thread.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/chrome_process_util.h"
 #include "chrome/test/ui/ui_test.h"
 #include "net/base/net_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 153 matching lines @@
 // Test that we don't kill ourselves by accident if a lockfile with the same pid
 // happens to exist.
 // TODO(mattm): This doesn't really need to be a uitest.  (We don't use the
 // uitest created browser process, but we do use some uitest provided stuff like
 // the user_data_dir and the NotifyOtherProcess function in this file, which
 // would have to be duplicated or shared if this test was moved into a
 // unittest.)
 TEST_F(ProcessSingletonLinuxTest, NotifyOtherProcessNoSuicide) {
   // Replace lockfile with one containing our own pid.
   EXPECT_EQ(0, unlink(lock_path_.value().c_str()));
-  std::string symlink_content = StringPrintf(
+  std::string symlink_content = base::StringPrintf(
       "%s%c%u",
       net::GetHostName().c_str(),
       '-',
       base::GetCurrentProcId());
   EXPECT_EQ(0, symlink(symlink_content.c_str(), lock_path_.value().c_str()));
 
   // Remove socket so that we will not be able to notify the existing browser.
   EXPECT_EQ(0, unlink(socket_path_.value().c_str()));
 
   std::string url("about:blank");
@@ skipping 99 matching lines @@
   EXPECT_EQ(0, symlink("INCORRECTCOOKIE", cookie_path_.value().c_str()));
 
   // Also change the hostname, so the remote does not retry.
   EXPECT_EQ(0, unlink(lock_path_.value().c_str()));
   EXPECT_EQ(0, symlink("FAKEFOOHOST-1234", lock_path_.value().c_str()));
 
   std::string url("about:blank");
   EXPECT_EQ(ProcessSingleton::PROFILE_IN_USE,
             NotifyOtherProcessOrCreate(url, TestTimeouts::action_timeout_ms()));
 }