Use a direct include of strings headers in net/test/, net/third_party/, net/tools/, net/udp/, net/u…

net/test/python_utils_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 <string>
 
 #include "base/command_line.h"
 #include "base/environment.h"
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/process_util.h"
-#include "base/string_util.h"
-#include "base/stringprintf.h"
+#include "base/strings/string_util.h"
+#include "base/strings/stringprintf.h"
 #include "net/test/python_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 TEST(PythonUtils, Append) {
   const base::FilePath::CharType kAppendDir1[] =
       FILE_PATH_LITERAL("test/path_append1");
   const base::FilePath::CharType kAppendDir2[] =
       FILE_PATH_LITERAL("test/path_append2");
 
   scoped_ptr<base::Environment> env(base::Environment::Create());
@@ skipping 28 matching lines @@
   // we want.
   cmd_line.AppendArg("-c");
   std::string input("PythonUtilsTest");
   std::string python_cmd = base::StringPrintf("print '%s';", input.c_str());
   cmd_line.AppendArg(python_cmd);
   std::string output;
   EXPECT_TRUE(base::GetAppOutput(cmd_line, &output));
   TrimWhitespace(output, TRIM_TRAILING, &output);
   EXPECT_EQ(input, output);
 }