Remove unneeded stringprintf.h usage in chrome/ and net/

chrome/browser/extensions/api/easy_unlock_private/easy_unlock_private_api_chromeos_unittest.cc

 // Copyright 2014 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 "chrome/browser/extensions/api/easy_unlock_private/easy_unlock_private_api.h"
 
 #include <memory>
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
-#include "base/strings/stringprintf.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/extension_api_unittest.h"
 #include "chrome/browser/extensions/extension_function_test_utils.h"
 #include "chrome/browser/extensions/extension_system_factory.h"
 #include "chrome/browser/extensions/test_extension_prefs.h"
 #include "chrome/browser/extensions/test_extension_system.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/signin/easy_unlock_app_manager.h"
 #include "chrome/browser/signin/easy_unlock_service_factory.h"
@@ skipping 628 matching lines @@
 
   scoped_refptr<TestableGetPermitAccessFunction> function(
       new TestableGetPermitAccessFunction());
   std::unique_ptr<base::Value> value(
       extensions::api_test_utils::RunFunctionAndReturnSingleResult(
           function.get(), "[]", profile()));
   EXPECT_FALSE(value);
 }
 
 }  // namespace