Cleanup: Remove some unneeded string allocations.

chrome/browser/history/history_querying_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 "base/basictypes.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
@@ skipping 383 matching lines @@
 
   TestEntry entry = { "http://xn--d1abbgf6aiiy.xn--p1ai/",  "Nothing", 0, };
   AddEntryToHistory(entry);
 
   struct QueryEntry {
     std::string query;
     size_t results_size;
   } queries[] = {
     { "bad query", 0 },
     { std::string("xn--d1abbgf6aiiy.xn--p1ai"), 1 },
-    { base::WideToUTF8(std::wstring(L"\u043f\u0440\u0435\u0437") +
+    { base::WideToUTF8(L"\u043f\u0440\u0435\u0437"
                        L"\u0438\u0434\u0435\u043d\u0442.\u0440\u0444"), 1, },
   };
 
   for (size_t i = 0; i < arraysize(queries); ++i) {
     QueryHistory(queries[i].query, options, &results);
     EXPECT_EQ(queries[i].results_size, results.size());
   }
 }
 
 // Test iterating over pages of results.
 TEST_F(HistoryQueryTest, Paging) {
   // Since results are fetched 1 and 2 at a time, entry #0 and #6 will not
   // be de-duplicated.
   int expected_results[] = { 4, 2, 3, 1, 7, 6, 5, 0 };
   TestPaging(std::string(), expected_results, arraysize(expected_results));
 }
 
 TEST_F(HistoryQueryTest, TextSearchPaging) {
   // Since results are fetched 1 and 2 at a time, entry #0 and #6 will not
   // be de-duplicated. Entry #4 does not contain the text "title", so it
   // shouldn't appear.
   int expected_results[] = { 2, 3, 1, 7, 6, 5 };
   TestPaging("title", expected_results, arraysize(expected_results));
 }
 
 }  // namespace history