Enable the threaded HTML parser

Now that we've fixed the remaining crash in the threaded HTML parser, we can
re-enable it.


Review URL: https://chromiumcodereview.appspot.com/14114003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@193554 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index 2fb9bc6..b810a11 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -501,9 +501,8 @@
       command_line.HasSwitch(switches::kEnableExperimentalWebKitFeatures);
   prefs.css_grid_layout_enabled =
       command_line.HasSwitch(switches::kEnableExperimentalWebKitFeatures);
-  // TODO(eseidel): Turn on the threaded HTML parser, and only disable it if
-  // kDisableThreadHTMLParser is given. crbug.com/224260 & crbug.com/223473.
-  prefs.threaded_html_parser = false;
+  prefs.threaded_html_parser =
+      !command_line.HasSwitch(switches::kDisableThreadedHTMLParser);
 #if defined(OS_ANDROID)
   prefs.user_gesture_required_for_media_playback = !command_line.HasSwitch(
       switches::kDisableGestureRequirementForMediaPlayback);