Update includes and delete remaining strings forwarding headers.

content/common/page_state_serialization_unittest.cc

 // Copyright 2013 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 <math.h>
 
 #include "base/base64.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/pickle.h"
-#include "base/stringprintf.h"
 #include "base/strings/string_util.h"
+#include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/common/page_state_serialization.h"
 #include "content/public/common/content_paths.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace content {
 namespace {
 
 #if defined(OS_WIN)
 inline bool isnan(double num) { return !!_isnan(num); }
@@ skipping 388 matching lines @@
 TEST_F(PageStateSerializationTest, BackwardsCompat_v13) {
   TestBackwardsCompat(13);
 }
 
 TEST_F(PageStateSerializationTest, BackwardsCompat_v14) {
   TestBackwardsCompat(14);
 }
 
 }  // namespace
 }  // namespace content