views: Convert IsEnabled() to just enabled() since it's just a simple accessor.

ui/views/controls/label.cc

Index: ui/views/controls/label.cc
diff --git a/ui/views/controls/label.cc b/ui/views/controls/label.cc
index 38ebf8a082e2594266b9fca9d107018c15f033b0..1bf03262c1fadd8db5f216bd0ada5b8a59ab2271 100644
--- a/ui/views/controls/label.cc
+++ b/ui/views/controls/label.cc
@@ -268,7 +268,7 @@ void Label::PaintText(gfx::Canvas* canvas,
                       const gfx::Rect& text_bounds,
                       int flags) {
   canvas->DrawStringInt(text, font_,
-      IsEnabled() ? actual_enabled_color_ : actual_disabled_color_,
+      enabled() ? actual_enabled_color_ : actual_disabled_color_,
       text_bounds.x(), text_bounds.y(), text_bounds.width(),
       text_bounds.height(), flags);