Use a direct include of strings headers in ppapi/, printing/.

ppapi/tests/test_case.cc

 // Copyright (c) 2012 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 "ppapi/tests/test_case.h"
 
 #include <string.h>
 
 #include <sstream>
 
@@ skipping 34 matching lines @@
   // TODO(dmichael): It might be nice to be able to PP_DCHECK against the
   // TestCase class name, but we'd have to plumb that name to TestCase somehow.
   return std::string();
 }
 
 // Parse |test_filter|, which is a comma-delimited list of (possibly prefixed)
 // test names and insert the un-prefixed names into |remaining_tests|, with
 // the bool indicating whether the test should be run.
 void ParseTestFilter(const std::string& test_filter,
                      std::map<std::string, bool>* remaining_tests) {
-  // We can't use base/string_util.h::Tokenize in ppapi, so we have to do it
-  // ourselves.
+  // We can't use base/strings/string_util.h::Tokenize in ppapi, so we have to
+  // do it ourselves.
   std::istringstream filter_stream(test_filter);
   std::string current_test;
   while (std::getline(filter_stream, current_test, ',')) {
     // |current_test| might include a prefix, like DISABLED_Foo_TestBar, so we
     // we strip it off if there is one.
     std::string stripped_test_name(StripPrefix(current_test));
     // Strip off the test case and use the test name as a key, because the test
     // name ShouldRunTest wants to use to look up the test doesn't have the
     // TestCase name.
     std::string test_name_without_case(StripTestCase(stripped_test_name));
@@ skipping 190 matching lines @@
 void TestCase::RunOnThreadInternal(void (*thread_func)(void*),
                                    void* thread_param,
                                    const PPB_Testing_Dev* testing_interface) {
     PP_ThreadType thread;
     PP_CreateThread(&thread, thread_func, thread_param);
     // Run a message loop so pepper calls can be dispatched. The background
     // thread will set result_ and make us Quit when it's done.
     testing_interface->RunMessageLoop(instance_->pp_instance());
     PP_JoinThread(thread);
 }