MD History: Truncate long search terms in card title box

chrome/browser/resources/md_history/synced_device_card.html

 <link rel="import" href="chrome://resources/cr_elements/icons.html">
 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-collapse/iron-collapse.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-icon-button/paper-icon-button-light.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-styles/shadow.html">
 <link rel="import" href="chrome://resources/html/icon.html">
 <link rel="import" href="chrome://history/browser_service.html">
 <link rel="import" href="chrome://history/constants.html">
 <link rel="import" href="chrome://history/searched_label.html">
 <link rel="import" href="chrome://history/shared_style.html">
 
 <dom-module id="history-synced-device-card">
   <template>
     <style include="shared-style">
       :host {
         @apply(--card-sizing);
         display: block;
         padding-bottom: var(--card-padding-between);
       }
 
       #card-heading {
+        -webkit-padding-end: 0;
         cursor: pointer;
         justify-content: space-between;
       }
 
       #tab-item-list {
         padding: 8px 0;
       }
 
       #last-update-time {
         color: var(--secondary-text-color);
       }
 
+      #title-left-content {
+        display: flex;
+        overflow: hidden;
+      }
+
+      #device-name {
+        overflow: hidden;
+        padding-right: 3px;
+        text-overflow: ellipsis;
+      }
+
       #right-buttons {
         -webkit-margin-end: 4px;
       }
 
       #menu-button {
         -webkit-margin-end: 8px;
       }
 
       #collapse {
         overflow: hidden;
@@ skipping 15 matching lines @@
       #window-separator {
         background-color: var(--card-border-color);
         height: 1px;
         margin: 5px auto;
         width: 80%;
       }
     </style>
     <div id="history-item-container">
       <div class="card-title" id="card-heading" aria-expanded$="[[opened]]"
           aria-controls="collapse" on-tap="toggleTabCard">
-        <div>
-          [[device]]
+        <div id="title-left-content">
+          <div id="device-name">
+            [[device]]
+          </div>
           <span id="last-update-time">[[lastUpdateTime]]</span>
         </div>
         <div id="right-buttons">
           <button is="paper-icon-button-light" id="menu-button"
               class="more-vert-button" on-tap="onMenuButtonTap_"
               title="$i18n{moreActionsButton}">
             <div></div>
             <div></div>
             <div></div>
           </button>
@@ skipping 20 matching lines @@
             <div id="window-separator"
                 hidden$="[[!isWindowSeparatorIndex_(index, separatorIndexes)]]">
             </div>
           </template>
         </div>
       </iron-collapse>
     </div>
   </template>
   <script src="chrome://history/synced_device_card.js"></script>
 </dom-module>