Fix auto raw pointer deduction on linux

components/subresource_filter/core/common/first_party_origin_unittest.cc

 // Copyright 2016 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 "components/subresource_filter/core/common/first_party_origin.h"
 
 #include "base/strings/string_number_conversions.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace subresource_filter {
@@ skipping 54 matching lines @@
   }
 }
 
 TEST(FirstPartyOriginTest, EmptyHostUrls) {
   const char* const kUrls[] = {
       "data:text/plain,example.com", "data:text/plain,another.example.com",
       "data:text/plain;base64,ABACABA",
   };
 
   FirstPartyOrigin first_party(url::Origin(GURL("https://example.com")));
-  for (const auto& url_string : kUrls) {
+  for (auto* url_string : kUrls) {
     GURL url(url_string);
     EXPECT_TRUE(FirstPartyOrigin::IsThirdParty(url, first_party.origin()));
     EXPECT_TRUE(first_party.IsThirdParty(url));
   }
 }
 
 }  // namespace subresource_filter