Remove OriginChip code.

chrome/browser/ui/toolbar/toolbar_model.cc

 // Copyright 2013 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/ui/toolbar/toolbar_model.h"
 
 #include "chrome/browser/search/search.h"
 
 ToolbarModel::ToolbarModel()
     : input_in_progress_(false),
-      origin_chip_enabled_(true),
       url_replacement_enabled_(true) {
 }
 
 ToolbarModel::~ToolbarModel() {
 }
 
 bool ToolbarModel::WouldReplaceURL() const {
-  return WouldOmitURLDueToOriginChip() ||
-      WouldPerformSearchTermReplacement(false);
+  return WouldPerformSearchTermReplacement(false);
 }
 
-bool ToolbarModel::ShouldShowOriginChip() const {
-  return chrome::ShouldDisplayOriginChip() && WouldOmitURLDueToOriginChip() &&
-      origin_chip_enabled();
-}