Update Linux to use scoped_refptr<T>::get() rather than implicit "operator T*"

chrome/browser/autocomplete/history_url_provider_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/autocomplete/history_url_provider.h"
 
 #include <algorithm>
 
 #include "base/message_loop.h"
 #include "base/path_service.h"
@@ skipping 837 matching lines @@
       "mailto://a@b.com", {0, npos, npos}, 0 },
   };
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_cases); ++i) {
     SCOPED_TRACE(testing::Message() << "Index " << i << " input: "
                                     << test_cases[i].input << ", trim_http: "
                                     << test_cases[i].trim_http);
 
     AutocompleteInput input(ASCIIToUTF16(test_cases[i].input), string16::npos,
                             string16(), GURL("about:blank"),
                             false, false, true, AutocompleteInput::ALL_MATCHES);
-    AutocompleteMatch match =
-        HistoryURLProvider::SuggestExactInput(autocomplete_, input,
-                                              test_cases[i].trim_http);
+    AutocompleteMatch match = HistoryURLProvider::SuggestExactInput(
+        autocomplete_.get(), input, test_cases[i].trim_http);
     EXPECT_EQ(ASCIIToUTF16(test_cases[i].contents), match.contents);
     for (size_t match_index = 0; match_index < match.contents_class.size();
          ++match_index) {
       EXPECT_EQ(test_cases[i].offsets[match_index],
                 match.contents_class[match_index].offset);
       EXPECT_EQ(ACMatchClassification::URL |
                 (match_index == test_cases[i].match_classification_index ?
                  ACMatchClassification::MATCH : 0),
                 match.contents_class[match_index].style);
     }
     EXPECT_EQ(npos, test_cases[i].offsets[match.contents_class.size()]);
   }
 }