views: Add OnEnabledChanged() method to View class.

views/controls/native_control.cc

Index: views/controls/native_control.cc
diff --git a/views/controls/native_control.cc b/views/controls/native_control.cc
index 83a67e53a0eb24418b26ab629b3198991e303514..7fc602c4ccdef41d6242c77742b518d4c1985717 100644
--- a/views/controls/native_control.cc
+++ b/views/controls/native_control.cc
@@ -13,8 +13,8 @@
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/base/accessibility/accessibility_types.h"
-#include "ui/base/keycodes/keyboard_codes.h"
 #include "ui/base/keycodes/keyboard_code_conversion_win.h"
+#include "ui/base/keycodes/keyboard_codes.h"
 #include "ui/base/l10n/l10n_util_win.h"
 #include "ui/base/view_prop.h"
 #include "ui/base/win/hwnd_util.h"
@@ -312,13 +312,10 @@ void NativeControl::SetVisible(bool f) {
   }
 }
 
-void NativeControl::SetEnabled(bool enabled) {
-  if (enabled_ != enabled) {
-    View::SetEnabled(enabled);
-    if (GetNativeControlHWND()) {
-      EnableWindow(GetNativeControlHWND(), enabled_);
-    }
-  }
+void NativeControl::OnEnabledChanged() {
+  View::OnEnabledChanged();
+  if (GetNativeControlHWND())
+    EnableWindow(GetNativeControlHWND(), View::IsEnabled());
 }
 
 void NativeControl::OnPaint(gfx::Canvas* canvas) {