views: Add OnEnabledChanged() method to View class.

views/controls/progress_bar.h

Index: views/controls/progress_bar.h
diff --git a/views/controls/progress_bar.h b/views/controls/progress_bar.h
index 43665190b202c68f7e37f0f6588ee90609e35ca7..601186dbaa59f53c6971e791e1326500b7e121ce 100644
--- a/views/controls/progress_bar.h
+++ b/views/controls/progress_bar.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -56,7 +56,7 @@ class ProgressBar : public View {
       OVERRIDE;
 
   // Sets the enabled state.
-  virtual void SetEnabled(bool enabled) OVERRIDE;
+  virtual void OnEnabledChanged() OVERRIDE;
 
   // Accessibility accessors, overridden from View.
   virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;