History: Fix JavaScript style issues so presubmit checks pass.

BUG=122015
TEST=This CL is self-verifying. If it passes presubmit checks, then
history.js has no more presubmit errors.

Review URL: https://chromiumcodereview.appspot.com/10164005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@133875 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/resources/web_dev_style/js_checker.py

@@ -75,6 +75,7 @@ class JSChecker(object):
     dirs = (
         path.join(resources, 'extensions'),
         path.join(resources, 'help'),
+        path.join(resources, 'history'),
         path.join(resources, 'net_internals'),
         path.join(resources, 'ntp4'),
         path.join(resources, 'options2'),