MD Downloads: fix focus issue on downloads page by combining pause/play

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/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-icon/iron-icon.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-light.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-progress/paper-progress.html">
 <link rel="import" href="chrome://downloads/action_service.html">
 <link rel="import" href="chrome://downloads/constants.html">
 <link rel="import" href="chrome://downloads/i18n_setup.html">
@@ skipping 35 matching lines @@
         </template>
 
         <div id="safe" class="controls" hidden="[[isDangerous_]]">
           <a is="action-link" id="show" on-tap="onShowTap_"
               hidden="[[!completelyOnDisk_]]">$i18n{controlShowInFolder}</a>
           <template is="dom-if" if="[[data.retry]]">
             <paper-button id="retry" on-tap="onRetryTap_">
               $i18n{controlRetry}
             </paper-button>
           </template>
-          <template is="dom-if" if="[[isInProgress_]]">
-            <paper-button id="pause" on-tap="onPauseTap_">
-              $i18n{controlPause}
-            </paper-button>
-          </template>
-          <template is="dom-if" if="[[data.resume]]">
-            <paper-button id="resume" on-tap="onResumeTap_">
-              $i18n{controlResume}
+          <template is="dom-if" if="[[pauseOrResumeText_]]">
+            <paper-button id="pause-or-resume" on-tap="onPauseOrResumeTap_">
+              [[pauseOrResumeText_]]
             </paper-button>
           </template>
           <template is="dom-if" if="[[showCancel_]]">
             <paper-button id="cancel" on-tap="onCancelTap_">
               $i18n{controlCancel}
             </paper-button>
           </template>
           <span id="controlled-by"><!-- Text populated dynamically. --></span>
         </div>
 
@@ skipping 28 matching lines @@
       <div id="incognito" title="$i18n{inIncognito}" hidden="[[!data.otr]]">
       </div>
     </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>