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

chrome/browser/autocomplete/history_url_provider_unittest.cc

Index: chrome/browser/autocomplete/history_url_provider_unittest.cc
diff --git a/chrome/browser/autocomplete/history_url_provider_unittest.cc b/chrome/browser/autocomplete/history_url_provider_unittest.cc
index 049bd7c95ea2d80ad62fbe842be9a12282b85ffe..0e9e87fa590f442e5c4e4677a3cd8b06380af88c 100644
--- a/chrome/browser/autocomplete/history_url_provider_unittest.cc
+++ b/chrome/browser/autocomplete/history_url_provider_unittest.cc
@@ -855,9 +855,8 @@ TEST_F(HistoryURLProviderTest, SuggestExactInput) {
     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) {