MD History: Hook all elements into the page and add tests.

chrome/chrome_tests.gypi

 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 {
   'variables': {
     'chrome_browser_extensions_test_support_sources': [
       # A list of sources which is shared between different browser tests.
       'browser/apps/app_browsertest_util.cc',
       'browser/apps/app_browsertest_util.h',
       'browser/extensions/browsertest_util.cc',
@@ skipping 953 matching lines @@
       'test/data/chromeos/oobe_webui_browsertest.js',
       'test/data/webui/about_invalidations_browsertest.js',
       'test/data/webui/accessibility_audit_browsertest.js',
       'test/data/webui/assertions.js',
       'test/data/webui/async_gen.js',
       'test/data/webui/certificate_viewer_dialog_test.js',
       'test/data/webui/chrome_send_browsertest.js',
       'test/data/webui/extensions/cr_extensions_browsertest.js',
       'test/data/webui/history_browsertest.js',
       'test/data/webui/md_downloads/downloads_browsertest.js',
+      'test/data/webui/md_history/md_history_browsertest.js',
       'test/data/webui/mock4js_browsertest.js',
       'test/data/webui/net_internals/bandwidth_view.js',
       'test/data/webui/net_internals/chromeos_view.js',
       'test/data/webui/net_internals/dns_view.js',
       'test/data/webui/net_internals/events_view.js',
       'test/data/webui/net_internals/hsts_view.js',
       'test/data/webui/net_internals/log_util.js',
       'test/data/webui/net_internals/log_view_painter.js',
       'test/data/webui/net_internals/main.js',
       'test/data/webui/net_internals/net_internals_test.js',
@@ skipping 2502 matching lines @@
             'browser',
           ],
           'sources': [
             'tools/service_discovery_sniffer/service_discovery_sniffer.cc',
             'tools/service_discovery_sniffer/service_discovery_sniffer.h',
           ],
         }]
     }],
   ],  # 'conditions'
 }