MD downloads: implement incognito markers

chrome/browser/resources/md_downloads/item.html

 <link rel="import" href="chrome://resources/html/action_link.html">
 <link rel="import" href="chrome://resources/html/cr.html">
 <link rel="import" href="chrome://resources/html/load_time_data.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/polymer/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-material/paper-material.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-progress/paper-progress.html">
 <link rel="import" href="chrome://resources/cr_elements/v1_0/cr_button/cr_button.html">
 <link rel="import" href="chrome://downloads/action_service.html">
 <link rel="import" href="chrome://downloads/constants.html">
 <link rel="import" href="chrome://downloads/throttled_icon_loader.html">
@@ skipping 18 matching lines @@
             --><span id="name"></span>
             <span id="tag"></span>
           </div>
 
           <a id="url" target="_blank" column-type="url"></a>
 
           <div id="description"></div>
 
           <paper-progress id="progress"></paper-progress>
 
           <div id="safe" class="controls" hidden$="[[isDangerous_]]">

[Dan Beam, 2015/07/31 22:39:51]

^

             <cr-button id="show" column-type="show" on-click="onShowClick_"
                 i18n-content="controlShowInFolder"></cr-button>
             <cr-button id="retry" column-type="retry" on-click="onRetryClick_"
                 i18n-content="controlRetry"></cr-button>
             <cr-button id="pause" column-type="pause" on-click="onPauseClick_"
                 i18n-content="controlPause"></cr-button>
             <cr-button id="resume" column-type="resume"
                 on-click="onResumeClick_"
                 i18n-content="controlResume"></cr-button>
             <cr-button id="cancel" column-type="cancel"
                 on-click="onCancelClick_"
                 i18n-content="controlCancel"></cr-button>
             <span id="controlled-by"
                 i18n-values=".innerHTML:controlByExtension"></span>
           </div>
 
           <div id="dangerous" class="controls" hidden$="[[!isDangerous_]]">

[Dan Beam, 2015/07/31 22:39:51]

^

             <cr-button column-type="save" i18n-content="dangerRestore"
                 on-click="onRestoreOrSaveClick_"
                 hidden$="[[!isMalware_]]"></cr-button>

[Dan Beam, 2015/07/31 22:39:51]

^

             <cr-button column-type="save" i18n-content="dangerSave"
                 on-click="onRestoreOrSaveClick_"
                 hidden$="[[isMalware_]]"></cr-button>

[Dan Beam, 2015/07/31 22:39:51]

^

           </div>
         </div>
 
+        <div id="incognito" class="icon-wrapper"
+            hidden$="[[!isIncognito_]]"></div>

[tommycli, 2015/07/31 22:37:50]

$= ?

[Dan Beam, 2015/07/31 22:39:51]

https://www.polymer-project.org/1.0/docs/devguide/data-binding.html

+
         <div id="remove-wrapper" class="icon-wrapper">
           <paper-icon-button id="remove" column-type="remove" icon="clear"
               on-click="onRemoveClick_"></paper-icon-button>
         </div>
       </paper-material>
     </div>
 
     <div id="end-cap"></div>
 
   </template>
   <link rel="import" type="css" href="chrome://resources/css/action_link.css">
   <link rel="import" type="css" href="chrome://downloads/shared_style.css">
   <link rel="import" type="css" href="chrome://downloads/item.css">
   <script src="chrome://downloads/item.js"></script>
 </dom-module>