Elim cr_button from md-settings

chrome/browser/resources/settings/internet_page/network_summary_item.html

 <link rel="import" href="chrome://resources/polymer/v1_0/polymer/polymer.html">
+<link rel="import" href="chrome://resources/polymer/v1_0/paper-button/paper-button.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-spinner/paper-spinner.html">
-<link rel="import" href="chrome://resources/cr_elements/v1_0/cr_button/cr_button.html">
 <link rel="import" href="chrome://resources/cr_elements/v1_0/cr_expand_button/cr_expand_button.html">
 <link rel="import" href="chrome://resources/cr_elements/v1_0/cr_toggle_button/cr_toggle_button.html">
 <link rel="import" href="chrome://resources/cr_elements/v1_0/network/cr_network_list.html">
 <link rel="import" href="chrome://resources/cr_elements/v1_0/network/cr_network_list_item.html">
 
 <dom-module name="network-summary-item">
   <link rel="import" type="css" href="network_summary_item.css">
   <template>
     <div class="layout vertical" hidden$="[[isHidden]]">
       <div id="details" class="layout horizontal center"
           on-click="onDetailsClicked_">
         <cr-network-list-item id="detailsItem"
             network-state="[[networkState]]">
         </cr-network-list-item>
         <paper-spinner active="[[showScanning_(deviceState, expanded)]]">
         </paper-spinner>
         <span class="flex"></span>
         <div id="buttons" class="layout horizontal">
           <cr-expand-button id="expandListButton"
               class$="[[getExpandButtonClass_(deviceState, networkStateList)]]"
               expanded="{{expanded}}">
           </cr-expand-button>
           <cr-toggle-button id="deviceEnabledButton"
               checked="[[deviceIsEnabled_(deviceState)]]"
               class$="[[getDeviceEnabledButtonClass_(deviceState)]]"
-              on-click="onDeviceEnabledToggled_">
+              on-tap="onDeviceEnabledToggled_">
           </cr-toggle-button>
         </div>
       </div>
       <div id="listDiv" class="layout vertical">
         <cr-network-list id="networkList"
             max-height="[[maxHeight]]"
             networks="[[networkStateList]]"
             on-selected="onListItemSelected_"
             opened="{{expanded}}">
         </cr-network-list>
         <div class="layout horizontal">
-          <cr-button hidden$="[[!showKnownNetworks_(networkState, expanded)]]"
-              on-click="onKnownNetworksClicked_">
+          <paper-button
+              hidden$="[[!showKnownNetworks_(networkState, expanded)]]"
+              on-tap="onKnownNetworksClicked_">
             Known networks
-          </cr-button>
+          </paper-button>
         </div>
       </div>
     </div>
   </template>
   <script src="network_summary_item.js"></script>
 </dom-module>