md settings: Move setup pin error message.

chrome/browser/resources/chromeos/quick_unlock/pin_keyboard.html

 <!-- TODO(crbug.com/603217): Use i18n instead of string literals. Figure out
                              what i18n to use for keypad, ie, does 1 ABC make
                              sense in every scenario? -->
 
 <link rel="import" href="chrome://resources/cr_elements/icons.html">
 <link rel="import" href="chrome://resources/cr_elements/shared_vars_css.html">
 <link rel="import" href="chrome://resources/html/i18n_behavior.html">
 <link rel="import" href="chrome://resources/html/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-icon-button/paper-icon-button.html">
@@ skipping 26 matching lines @@
       :host {
         outline: none;
       }
 
       :host(:not([enable-submit-button])) #pinInput {
         left: 0;
         text-align: center;
         width: 180px;
       }
 
+      :host([has-error]) #pinInput {
+        --paper-input-container-focus-color: var(--paper-red-500);
+      }
+
       #root {
         direction: ltr;
         display: flex;
       }
 
       .row {
         display: flex;
       }
 
       .digit-button {
@@ skipping 118 matching lines @@
         <div class="row first-row">
           <paper-input id="pinInput" type="password" no-label-float
               value="[[value]]"
               is-input-rtl$="[[isInputRtl_(value)]]"
               has-content$="[[hasInput_(value)]]"
               label="[[getInputPlaceholder_(enablePassword)]]"
               on-keydown="onInputKeyDown_"
               hidden="[[!showPinInput_]]">
           </paper-input>
         </div>
+        <content select="[problem]"></content>
         <div class="separator" hidden="[[showPinInput_]]"></div>
         <div class="row keyboard">
           <paper-button class="digit-button" on-tap="onNumberTap_" value="1"
               noink>
             <inner-text>$i18n{pinKeyboard1}</inner-text>
             <paper-ripple>
           </paper-button>
           <paper-button class="digit-button" on-tap="onNumberTap_" value="2"
               noink>
             <inner-text>$i18n{pinKeyboard2}</inner-text>
@@ skipping 57 matching lines @@
                 noink>
             </paper-icon-button>
             <paper-ripple>
           </div>
         </div>
       </div>
     </div>
   </template>
   <script src="pin_keyboard.js"></script>
 </dom-module>