Nukes outdated comment

Comment is not applicable anymore.

BUG=none
TEST=none
R=pkotwicz@chromium.org
TBR=pkotwicz@chromium.org

Review URL: https://codereview.chromium.org/24050002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@221791 0039d316-1c4b-4281-b951-d872f2087c98

ui/views/widget/root_view.cc

@@ -635,10 +635,6 @@ void RootView::OnPaint(gfx::Canvas* canvas) {
   if (!layer() || !layer()->fills_bounds_opaquely())
     canvas->DrawColor(SK_ColorBLACK, SkXfermode::kClear_Mode);
 
-  // TODO (pkotwicz): Remove this once we switch over to Aura desktop.
-  // This is needed so that we can set the background behind the RWHV when the
-  // RWHV is not visible. Not needed once there is a view between the RootView
-  // and RWHV.
   View::OnPaint(canvas);
 }