[MD History] Add search for synced devices.

chrome/browser/resources/md_history/synced_device_card.js

Index: chrome/browser/resources/md_history/synced_device_card.js
diff --git a/chrome/browser/resources/md_history/synced_device_card.js b/chrome/browser/resources/md_history/synced_device_card.js
index 4b01791c3551e8b0f16a840a60dd3ba4272f559b..4a76567095928df54c4e7e861d39e923f93b3383 100644
--- a/chrome/browser/resources/md_history/synced_device_card.js
+++ b/chrome/browser/resources/md_history/synced_device_card.js
@@ -28,6 +28,14 @@ Polymer({
       observer: 'updateIcons_'
     },
 
+    /**
+     * The indexes where a window separator should be shown.
+     * @type {!Array<number>}
+     */
+    separatorIndexes: {

[tsergeant, 2016/06/01 08:00:35]

Nit: can use the one line short-form.

[calamity, 2016/06/02 05:59:18]

Done.

+      type: Array,
+    },
+
     // Whether the card is open.
     cardOpen_: {
       type: Boolean,
@@ -68,5 +76,9 @@ Polymer({
             cr.icon.getFaviconImageSet(this.tabs[i].url);
       }
     });
+  },
+
+  isWindowSeparatorIndex: function(index, separatorIndexes) {
+    return this.separatorIndexes.indexOf(index) != -1;
   }
 });