Introduce BubbleDialogDelegateView, which extends DialogDelegateView

ui/views/examples/widget_example.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/widget_example.h"
 
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "ui/views/background.h"
@@ skipping 10 matching lines @@
 namespace examples {
 
 namespace {
 
 class DialogExample : public DialogDelegateView {
  public:
   DialogExample();
   ~DialogExample() override;
   base::string16 GetWindowTitle() const override;
   View* CreateExtraView() override;
-  View* CreateTitlebarExtraView() override;
   View* CreateFootnoteView() override;
 };
 
 class ModalDialogExample : public DialogExample {
  public:
   ModalDialogExample() {}
 
   // WidgetDelegate:
   ui::ModalType GetModalType() const override { return ui::MODAL_TYPE_WINDOW; }
 
@@ skipping 12 matching lines @@
 base::string16 DialogExample::GetWindowTitle() const {
   return ASCIIToUTF16("Dialog Widget Example");
 }
 
 View* DialogExample::CreateExtraView() {
   LabelButton* button = new LabelButton(NULL, ASCIIToUTF16("Extra button!"));
   button->SetStyle(Button::STYLE_BUTTON);
   return button;
 }
 
-View* DialogExample::CreateTitlebarExtraView() {
-  Label* label = new Label(ASCIIToUTF16("Extra view!"));
-  label->SetEnabledColor(SK_ColorBLUE);
-  return label;
-}
-
 View* DialogExample::CreateFootnoteView() {
   return new Label(ASCIIToUTF16("Footnote label!"));
 }
 
 }  // namespace
 
 WidgetExample::WidgetExample() : ExampleBase("Widget") {
 }
 
 WidgetExample::~WidgetExample() {
@@ skipping 59 matching lines @@
       ShowWidget(sender, Widget::InitParams(Widget::InitParams::TYPE_CONTROL));
       break;
     case CLOSE_WIDGET:
       sender->GetWidget()->Close();
       break;
   }
 }
 
 }  // namespace examples
 }  // namespace views