Vulcanize MD History to improve page-load performance

chrome/test/data/webui/md_history/history_toolbar_test.js

Index: chrome/test/data/webui/md_history/history_toolbar_test.js
diff --git a/chrome/test/data/webui/md_history/history_toolbar_test.js b/chrome/test/data/webui/md_history/history_toolbar_test.js
index 5383fd1d824af25175838f5376508dd0f4a39c5f..50ecea196f3d3c62153155e39bdeeb7def48a5d6 100644
--- a/chrome/test/data/webui/md_history/history_toolbar_test.js
+++ b/chrome/test/data/webui/md_history/history_toolbar_test.js
@@ -66,8 +66,12 @@ cr.define('md_history.history_toolbar_test', function() {
         assertFalse(field.showingSearch, 'Pressing escape closes field.');
         assertNotEquals(field.$.searchInput, field.root.activeElement);
 
+        var modifier = 'ctrl';
+        if (cr.isMac)
+          modifier = 'meta';
+
         MockInteractions.pressAndReleaseKeyOn(
-            document.body, 70, 'ctrl', 'f');
+            document.body, 70, modifier, 'f');
         assertTrue(field.showingSearch);
         assertEquals(field.$.searchInput, field.root.activeElement);
       });