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

chrome/browser/extensions/api/networking_private/networking_private_crypto_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/networking_private/networking_private_crypto.h"
 
 #include <stdint.h>
 
 #include "base/base64.h"
 #include "base/logging.h"
-#include "base/strings/stringprintf.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
 
 }  // namespace
 
 // Tests of networking_private_crypto support for Networking Private API.
 class NetworkingPrivateCryptoTest : public testing::Test {
  protected:
   // Verify that decryption of |encrypted| data using |private_key_pem| matches
@@ skipping 201 matching lines @@
       public_key, plain, &encrypted_output));
 
   // Checking graceful fail for too much data to encrypt.
   EXPECT_FALSE(networking_private_crypto::EncryptByteString(
       public_key, std::string(500, 'x'), &encrypted_output));
 
   // Checking graceful fail for a bad key format.
   EXPECT_FALSE(networking_private_crypto::EncryptByteString(
       kBadKeyData, kTestData, &encrypted_output));
 }