Remove frame from new style web view dialog.

Trivial one line change, TBR'ing OWNER.

TBR=pkasting@chromium.org
BUG=226788

Review URL: https://chromiumcodereview.appspot.com/14192005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@195315 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/ui/views/constrained_window_views.cc

@@ -637,6 +637,7 @@ views::Widget* CreateWebContentsModalDialogViews(
   if (views::DialogDelegate::UseNewStyle()) {
     params.parent =
         views::Widget::GetTopLevelWidgetForNativeView(parent)->GetNativeView();
+    params.remove_standard_frame = true;
     dialog_host_observer =
         new WebContentsModalDialogHostObserverViews(
             dialog_host,