Use a direct include of strings headers in chrome/renderer/.

chrome/renderer/safe_browsing/phishing_classifier_browsertest.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.
 //
 // Note that although this is not a "browser" test, it runs as part of
 // browser_tests.  This is because WebKit does not work properly if it is
 // shutdown and re-initialized.  Since browser_tests runs each test in a
 // new process, this avoids the problem.
 
 #include "chrome/renderer/safe_browsing/phishing_classifier.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/string16.h"
+#include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/common/safe_browsing/client_model.pb.h"
 #include "chrome/common/safe_browsing/csd.pb.h"
 #include "chrome/renderer/safe_browsing/features.h"
 #include "chrome/renderer/safe_browsing/mock_feature_extractor_clock.h"
 #include "chrome/renderer/safe_browsing/murmurhash3_util.h"
 #include "chrome/renderer/safe_browsing/scorer.h"
 #include "content/public/test/render_view_fake_resources_test.h"
 #include "crypto/sha2.h"
 #include "testing/gmock/include/gmock/gmock.h"
@@ skipping 175 matching lines @@
   // Now set the scorer.
   classifier_->set_phishing_scorer(scorer_.get());
   EXPECT_TRUE(classifier_->is_ready());
 
   // Set a NULL scorer, which turns detection back off.
   classifier_->set_phishing_scorer(NULL);
   EXPECT_FALSE(classifier_->is_ready());
 }
 
 }  // namespace safe_browsing