Allow dialogs to use a custom View as their title.

ui/views/bubble/bubble_frame_view.h

 // 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.
 
 #ifndef UI_VIEWS_BUBBLE_BUBBLE_FRAME_VIEW_H_
 #define UI_VIEWS_BUBBLE_BUBBLE_FRAME_VIEW_H_
 
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
+#include "ui/gfx/font_list.h"
 #include "ui/gfx/geometry/insets.h"
 #include "ui/views/controls/button/button.h"
+#include "ui/views/controls/label.h"
 #include "ui/views/window/non_client_view.h"
 
-namespace gfx {
-class FontList;
-}
-
 namespace views {
 
-class Label;
 class BubbleBorder;
 class ImageView;
 
 // The non-client frame view of bubble-styled widgets.
 class VIEWS_EXPORT BubbleFrameView : public NonClientFrameView,
                                      public ButtonListener {
  public:
   // Internal class name.
   static const char kViewClassName[];
 
@@ skipping 13 matching lines @@
   void GetWindowMask(const gfx::Size& size, gfx::Path* window_mask) override;
   void ResetWindowControls() override;
   void UpdateWindowIcon() override;
   void UpdateWindowTitle() override;
   void SizeConstraintsChanged() override;
 
   // Set the FontList to be used for the title of the bubble.
   // Caller must arrange to update the layout to have the call take effect.
   void SetTitleFontList(const gfx::FontList& font_list);
 
+  // Sets a custom view to be the dialog title instead of the |default_title_|
+  // label. The title view is owned by this BubbleFrameView. If there is an
+  // existing title view it will be deleted.
+  void SetTitleView(View* title_view);
+
   // View:
   const char* GetClassName() const override;
   gfx::Insets GetInsets() const override;
   gfx::Size CalculatePreferredSize() const override;
   gfx::Size GetMinimumSize() const override;
   gfx::Size GetMaximumSize() const override;
   void Layout() override;
   void OnPaint(gfx::Canvas* canvas) override;
   void PaintChildren(const ui::PaintContext& context) override;
   void OnThemeChanged() override;
@@ skipping 54 matching lines @@
   BubbleBorder* bubble_border_;
 
   // Margins around the title label.
   gfx::Insets title_margins_;
 
   // Margins between the content and the inside of the border, in pixels.
   gfx::Insets content_margins_;
 
   // The optional title icon, title, and (x) close button.
   views::ImageView* title_icon_;
-  Label* title_;
+  Label* default_title_;
+  View* delegate_title_;
   Button* close_;
 
+  View* title() const {

[sky, 2017/06/09 23:49:16]

Move above functions.

[Bret, 2017/06/15 22:20:35]

Done.

+    return delegate_title_ ? delegate_title_ : default_title_;
+  }
+
   // A view to contain the footnote view, if it exists.
   View* footnote_container_;
 
   // Whether the close button was clicked.
   bool close_button_clicked_;
 
   DISALLOW_COPY_AND_ASSIGN(BubbleFrameView);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_BUBBLE_BUBBLE_FRAME_VIEW_H_