Added a check in Searchbox::OnMostVisitedChanged() to prevent duplicate notifications regarding mos…

chrome/browser/search/search.cc

 // Copyright 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/search/search.h"
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
@@ skipping 733 matching lines @@
   // Extended mode instant requires a search terms replacement key.
   return instant_url.is_valid() &&
          (!IsInstantExtendedAPIEnabled() ||
           template_url->HasSearchTermsReplacementKey(instant_url));
 }
 
 void ResetInstantExtendedOptInStateGateForTest() {
   instant_extended_opt_in_state_gate = false;
 }
 
-bool AreMostVisitedItemsEqual(
-    const std::vector<InstantMostVisitedItem>& items_a,
-    const std::vector<InstantMostVisitedItem>& items_b) {
-  if (items_a.size() != items_b.size())
-    return false;
-
-  for (size_t i = 0; i < items_b.size(); ++i) {
-    if (items_b[i].url != items_a[i].url ||
-        items_b[i].title != items_a[i].title) {
-      return false;
-    }
-  }
-  return true;
-}
-
 }  // namespace chrome