Use a direct include of strings headers in chrome/browser/extensions/, part 4.

chrome/browser/extensions/script_badge_controller_unittest.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 <string>
 
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
-#include "base/stringprintf.h"
+#include "base/strings/stringprintf.h"
 #include "chrome/browser/extensions/extension_action_manager.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/script_badge_controller.h"
 #include "chrome/browser/extensions/tab_helper.h"
 #include "chrome/browser/extensions/test_extension_system.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/chrome_version_info.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_builder.h"
@@ skipping 247 matching lines @@
   // Getting attention a second time should have no effect.
   script_badge_controller_->GetAttentionFor(extension->id());
 
   EXPECT_THAT(script_badge_controller_->GetCurrentActions(),
               testing::ElementsAre(GetScriptBadge(*extension.get())));
   EXPECT_EQ(0, subsequent_get_attention_call.events);
 };
 
 }  // namespace
 }  // namespace extensions