MD Bookmarks: Restore any previously selected folder when clearing search

chrome/test/data/webui/md_bookmarks/sidebar_test.js

Index: chrome/test/data/webui/md_bookmarks/sidebar_test.js
diff --git a/chrome/test/data/webui/md_bookmarks/sidebar_test.js b/chrome/test/data/webui/md_bookmarks/sidebar_test.js
index 79066696e8f09954fc5c46a11a1aa00fd3bbe3e9..097ba79e27d48bbffc1bb574c509606f58de95be 100644
--- a/chrome/test/data/webui/md_bookmarks/sidebar_test.js
+++ b/chrome/test/data/webui/md_bookmarks/sidebar_test.js
@@ -70,5 +70,25 @@ suite('<bookmarks-sidebar>', function() {
       assertEquals(2, f.depth);
       assertEquals('2', f.style.getPropertyValue('--node-depth'));
     });
-  })
+  });
+
+  test('doesn\'t highlight selected folder while searching', function() {
+    var rootFolders =
+        sidebar.$['folder-tree'].querySelectorAll('bookmarks-folder-node');
+
+    store.data.selectedFolder = '1';
+    store.notifyObservers();
+
+    assertEquals('1', rootFolders['0'].itemId);
+    assertTrue(rootFolders['0'].isSelectedFolder_);
+
+    store.data.search = {
+      term: 'test',
+      inProgress: false,
+      results: ['3'],
+    };
+    store.notifyObservers();
+
+    assertFalse(rootFolders['0'].isSelectedFolder_);
+  });
 });