[update_engine] Update to use not-hideously-old logging API from chrome

libcurl_http_fetcher.cc

 // Copyright (c) 2009 The Chromium OS 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 "update_engine/libcurl_http_fetcher.h"
 #include <algorithm>
-#include "chromeos/obsolete_logging.h"
+#include "base/logging.h"
 
 using std::max;
 using std::make_pair;
 
 // This is a concrete implementation of HttpFetcher that uses libcurl to do the
 // http work.
 
 namespace chromeos_update_engine {
 
 namespace {
@@ skipping 272 matching lines @@
     curl_handle_ = NULL;
   }
   if (curl_multi_handle_) {
     CHECK_EQ(curl_multi_cleanup(curl_multi_handle_), CURLM_OK);
     curl_multi_handle_ = NULL;
   }
   transfer_in_progress_ = false;
 }
 
 }  // namespace chromeos_update_engine