Attempt four at landing the "histogram.h removed from message_loop.h" patch.

chrome/browser/autocomplete/autocomplete_edit.cc

 // Copyright (c) 2010 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/autocomplete_edit.h"
 
 #include <string>
 
 #include "base/basictypes.h"
+#include "base/histogram.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/app/chrome_dll_resource.h"
 #include "chrome/browser/autocomplete/autocomplete_classifier.h"
 #include "chrome/browser/autocomplete/autocomplete_edit_view.h"
 #include "chrome/browser/autocomplete/autocomplete_popup_model.h"
 #include "chrome/browser/autocomplete/keyword_provider.h"
 #include "chrome/browser/command_updater.h"
 #include "chrome/browser/extensions/extension_omnibox_api.h"
 #include "chrome/browser/metrics/user_metrics.h"
@@ skipping 656 matching lines @@
     AutocompleteMatch* match,
     GURL* alternate_nav_url) const {
   if (popup_->IsOpen() || query_in_progress()) {
     popup_->InfoForCurrentSelection(match, alternate_nav_url);
   } else {
     profile_->GetAutocompleteClassifier()->Classify(
         UserTextFromDisplayText(view_->GetText()), GetDesiredTLD(), match,
         alternate_nav_url);
   }
 }