Use a direct include of utf_string_conversions.h in chrome/browser/, part 2.

chrome/browser/net/spdyproxy/http_auth_handler_spdyproxy_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 "chrome/browser/net/spdyproxy/http_auth_handler_spdyproxy.h"
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/string_util.h"
-#include "base/utf_string_conversions.h"
+#include "base/strings/utf_string_conversions.h"
 #include "net/base/net_errors.h"
 #include "net/http/http_request_info.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
 
 const char kValidOrigin[] = "https://www.proxy.com/";
 const char kValidChallenge[] = "SpdyProxy realm=\"SpdyProxy\", "
     "ps=\"1-2-3-4\"";
 
@@ skipping 129 matching lines @@
       EXPECT_EQ(tests[i].expected_realm, spdyproxy->realm());
       HttpAuthHandlerSpdyProxy* as_spdyproxy =
           static_cast<HttpAuthHandlerSpdyProxy*>(spdyproxy.get());
       EXPECT_EQ(tests[i].expected_ps,
                 as_spdyproxy->ps_token_);
     }
   }
 }
 
 }  // namespace spdyproxy