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

base/files/file_path_watcher_browsertest.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/files/file_path_watcher.h"
 
 #include <set>
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <aclapi.h>
 #elif defined(OS_POSIX)
 #include <sys/stat.h>
 #endif
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/memory/scoped_temp_dir.h"
 #include "base/message_loop.h"
 #include "base/message_loop_proxy.h"
 #include "base/path_service.h"
-#include "base/string_util.h"
 #include "base/stl_util-inl.h"
+#include "base/stringprintf.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/test/test_timeouts.h"
 #include "base/threading/thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace base {
 namespace files {
 
 namespace {
 
@@ skipping 292 matching lines @@
   VLOG(1) << "Waiting for file deletion";
   ASSERT_TRUE(WaitForEvents());
 }
 
 // Exercises watch reconfiguration for the case that directories on the path
 // are rapidly created.
 TEST_F(FilePathWatcherTest, DirectoryChain) {
   FilePath path(temp_dir_.path());
   std::vector<std::string> dir_names;
   for (int i = 0; i < 20; i++) {
-    std::string dir(StringPrintf("d%d", i));
+    std::string dir(base::StringPrintf("d%d", i));
     dir_names.push_back(dir);
     path = path.AppendASCII(dir);
   }
 
   FilePathWatcher watcher;
   FilePath file(path.AppendASCII("file"));
   scoped_refptr<TestDelegate> delegate(new TestDelegate(collector()));
   ASSERT_TRUE(SetupWatch(file, &watcher, delegate.get()));
 
   FilePath sub_path(temp_dir_.path());
@@ skipping 264 matching lines @@
   ASSERT_TRUE(ChangeFilePermissions(test_dir1, Execute, false));
   ASSERT_TRUE(WaitForEvents());
   ASSERT_TRUE(ChangeFilePermissions(test_dir1, Execute, true));
 }
 
 #endif  // OS_MACOSX
 }  // namespace
 
 }  // namespace files
 }  // namespace base