Use string for Histogram names since these are all ASCII anyway wide-characte...

chrome/browser/autocomplete/history_url_provider.cc

 // Copyright (c) 2006-2008 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/histogram.h"
 #include "base/message_loop.h"
@@ skipping 99 matching lines @@
 void HistoryURLProvider::ExecuteWithDB(history::HistoryBackend* backend,
                                        history::URLDatabase* db,
                                        HistoryURLProviderParams* params) {
   // We may get called with a NULL database if it couldn't be properly
   // initialized.  In this case we just say the query is complete.
   if (db && !params->cancel) {
     TimeTicks beginning_time = TimeTicks::Now();
 
     DoAutocomplete(backend, db, params);
 
-    HISTOGRAM_TIMES(L"Autocomplete.HistoryAsyncQueryTime",
+    HISTOGRAM_TIMES("Autocomplete.HistoryAsyncQueryTime",
                     TimeTicks::Now() - beginning_time);
   }
 
   // Return the results (if any) to the main thread.
   params->message_loop->PostTask(FROM_HERE, NewRunnableMethod(
       this, &HistoryURLProvider::QueryComplete, params));
 }
 
 // Used by both autocomplete passes, and therefore called on multiple different
 // threads (though not simultaneously).
@@ skipping 689 matching lines @@
       history_match.input_location - offset, params->input.text().length(),
       match.contents.length(), ACMatchClassification::URL,
       &match.contents_class);
   match.description = info.title();
   AutocompleteMatch::ClassifyMatchInString(params->input.text(), info.title(),
                                            ACMatchClassification::NONE,
                                            &match.description_class);
 
   return match;
 }
-