net: move host_resolver files from net/base to net/dns

net/url_request/url_request_context.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 "net/url_request/url_request_context.h"
 
 #include "base/compiler_specific.h"
 #include "base/debug/alias.h"
 #include "base/debug/stack_trace.h"
 #include "base/string_util.h"
-#include "net/base/host_resolver.h"
 #include "net/cookies/cookie_store.h"
+#include "net/dns/host_resolver.h"
 #include "net/ftp/ftp_transaction_factory.h"
 #include "net/http/http_transaction_factory.h"
 #include "net/url_request/http_user_agent_settings.h"
 #include "net/url_request/url_request.h"
 
 namespace net {
 
 URLRequestContext::URLRequestContext()
     : net_log_(NULL),
       host_resolver_(NULL),
@@ skipping 89 matching lines @@
     base::debug::Alias(&num_requests);
     base::debug::Alias(&has_delegate);
     base::debug::Alias(&load_flags);
     base::debug::Alias(&stack_trace);
     CHECK(false) << "Leaked " << num_requests << " URLRequest(s). First URL: "
                  << request->url().spec().c_str() << ".";
   }
 }
 
 }  // namespace net