Combobox: Rename styles to STYLE_NORMAL and STYLE_ACTION and modify behaviors

ui/views/examples/examples_window.cc

 // Copyright (c) 2012 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.
 
 #include "ui/views/examples/examples_window.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/memory/scoped_vector.h"
@@ skipping 166 matching lines @@
     return base::ASCIIToUTF16("Views Examples");
   }
   virtual View* GetContentsView() OVERRIDE { return this; }
   virtual void WindowClosing() OVERRIDE {
     instance_ = NULL;
     if (operation_ == QUIT_ON_CLOSE)
       base::MessageLoopForUI::current()->Quit();
   }
 
   // ComboboxListener:
-  virtual void OnSelectedIndexChanged(Combobox* combobox) OVERRIDE {
+  virtual void OnPerformAction(Combobox* combobox) OVERRIDE {
     DCHECK_EQ(combobox, combobox_);
     DCHECK(combobox->selected_index() < combobox_model_.GetItemCount());
     example_shown_->RemoveAllChildViews(false);
     example_shown_->AddChildView(combobox_model_.GetItemViewAt(
         combobox->selected_index()));
     example_shown_->RequestFocus();
     SetStatus(std::string());
     Layout();
   }
 
@@ skipping 27 matching lines @@
     widget->Show();
   }
 }
 
 void LogStatus(const std::string& string) {
   ExamplesWindowContents::instance()->SetStatus(string);
 }
 
 }  // namespace examples
 }  // namespace views