[MD settings] removing secondary-button class

chrome/browser/resources/settings/printing_page/cups_add_printer_dialog.html

 <link rel="import" href="chrome://resources/html/md_select_css.html">
 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/html/web_ui_listener_behavior.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-input/paper-input.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-spinner/paper-spinner.html">
 <link rel="import" href="../i18n_setup.html">
 <link rel="import" href="cups_add_printer_dialog_util.html">
 <link rel="import" href="cups_printers_browser_proxy.html">
 <link rel="import" href="../settings_shared_css.html">
@@ skipping 45 matching lines @@
         <div class="center" id="noPrinterMessage" hidden>
            $i18n{noPrinterNearbyMessage}
         </div>
         <div id="searchSpinner" hidden="[[!discovering_]]">
           <paper-spinner active="[[discovering_]]"></paper-spinner>
           <span>$i18n{searchingNearbyPrinters}</span>
         </div>
       </div>
       <div class="dialog-buttons">
         <div>  <!-- Left group -->
-          <paper-button id="manuallyAddPrinterButton" class="secondary-button"
+          <paper-button id="manuallyAddPrinterButton"
               on-tap="switchToManualAddDialog_">
             $i18n{manuallyAddPrinterButtonText}
           </paper-button>
         </div>
         <div>  <!-- Right group -->
-          <paper-button class="cancel-button secondary-button"
-              on-tap="onCancelTap_">
+          <paper-button class="cancel-button" on-tap="onCancelTap_">
             $i18n{cancelButtonText}
           </paper-button>
           <paper-button class="action-button" id="addPrinterButton"
               disabled="[[!selectedPrinter]]"
               on-tap="switchToManufacturerDialog_">
             $i18n{addPrinterButtonText}
           </paper-button>
         </div>
       </div>
     </add-printer-dialog>
@@ skipping 100 matching lines @@
                 </select>
                 <span class="md-select-underline"></span>
               </div>
             </div>
           </div>
         </div>
         <div class="settings-box two-line">
           <div class="start">
             <div class="label">$i18n{printerQueue}</div>
             <div class="secondary">
-              <paper-input no-label-float label="ipp/print" 
+              <paper-input no-label-float label="ipp/print"
                   value="{{newPrinter.printerQueue}}">
               </paper-input>
             </div>
           </div>
         </div>
         <div class="search-printer-box" id="searchInProgress" hidden>
           <paper-spinner active></paper-spinner>
           <span class="spinner-comment">$i18n{searchingPrinter}</span>
         </div>
         <div class="search-printer-box printer-not-found"
             id="searchNotFound" hidden>
           <span>$i18n{printerNotFound}</span>
         </div>
         <div class="search-printer-box printer-found" id="searchFound" hidden>
           <span>$i18n{printerFound}</span>
         </div>
       </div>
       <div class="dialog-buttons">
-        <paper-button class="cancel-button secondary-button"
-            on-tap="onCancelTap_">
+        <paper-button class="cancel-button" on-tap="onCancelTap_">
           $i18n{cancelButtonText}
         </paper-button>
         <paper-button class="action-button" on-tap="switchToManufacturerDialog_"
             disabled="[[!newPrinter.printerName]]">
           $i18n{addPrinterButtonText}
         </paper-button>
       </div>
     </add-printer-dialog>
   </template>
 </dom-module>
@@ skipping 81 matching lines @@
               </paper-input>
             </div>
           </div>
         </div>
         <div class="error-message" hidden="[[!setupFailed]]">
           Driver not found (exact error message TBD)
         </div>
       </div>
       <div class="dialog-buttons">
         <div>  <!-- Left group -->
-          <paper-button id="manuallyAddPrinterButton" class="secondary-button"
+          <paper-button id="manuallyAddPrinterButton"
               on-tap="switchToPreviousDialog_">
             $i18n{back}
           </paper-button>
         </div>
         <div>  <!-- Right group -->
-          <paper-button class="cancel-button secondary-button"
-              on-tap="onCancelTap_">
+          <paper-button class="cancel-button" on-tap="onCancelTap_">
             $i18n{cancelButtonText}
           </paper-button>
           <paper-button class="action-button" id="addPrinterButton"
               disabled="[[!canAddPrinter_(newPrinter.printerManufacturer,
                                           newPrinter.printerModel,
                                           newPrinter.printerPPDPath)]]"
               on-tap="switchToConfiguringDialog_">
             $i18n{addPrinterButtonText}
           </paper-button>
         </div>
@@ skipping 10 matching lines @@
         text-align: center;
       }
     </style>
     <add-printer-dialog>
       <div class="dialog-title">[[dialogTitle]]</div>
       <div class="dialog-body">
         <paper-spinner active></paper-spinner>
         <div id="configuringMessage">$i18n{printerConfiguringMessage}</div>
       </div>
       <div class="dialog-buttons">
-        <paper-button class="cancel-button secondary-button"
-            on-tap="onCancelConfiguringTap_">
+        <paper-button class="cancel-button" on-tap="onCancelConfiguringTap_">
           $i18n{cancelButtonText}
         </paper-button>
       </div>
     </add-printer-dialog>
   </template>
 </dom-module>
 
 <dom-module id="settings-cups-add-printer-dialog">
   <template>
     <style include="settings-shared"></style>
@@ skipping 21 matching lines @@
     <!-- Manufacturer and Model Dialog -->
     <template is="dom-if" if="[[showManufacturerDialog_]]" restamp>
       <add-printer-manufacturer-model-dialog new-printer="{{newPrinter}}"
           previous-dialog="[[previousDialog]]" setup-failed="[[setupFailed]]">
       </add-printer-manufacturer-model-dialog>
     </template>
 
   </template>
   <script src="cups_add_printer_dialog.js"></script>
 </dom-module>