Show avatar icon on V2 app's frame

ash/frame/default_header_painter.h

 // Copyright 2014 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 ASH_FRAME_DEFAULT_HEADER_PAINTER_H_
 #define ASH_FRAME_DEFAULT_HEADER_PAINTER_H_
 
 #include "ash/ash_export.h"
 #include "ash/frame/header_painter.h"
 #include "base/basictypes.h"
@@ skipping 28 matching lines @@
             FrameCaptionButtonContainerView* caption_button_container);
 
   // HeaderPainter overrides:
   virtual int GetMinimumHeaderWidth() const OVERRIDE;
   virtual void PaintHeader(gfx::Canvas* canvas, Mode mode) OVERRIDE;
   virtual void LayoutHeader() OVERRIDE;
   virtual int GetHeaderHeightForPainting() const OVERRIDE;
   virtual void SetHeaderHeightForPainting(int height) OVERRIDE;
   virtual void SchedulePaintForTitle() OVERRIDE;
 
+  // Sets the window icon for the header. Passing NULL removes the window icon.
+  void UpdateWindowIcon(views::View* window_icon, int icon_size);
+
  private:
   FRIEND_TEST_ALL_PREFIXES(DefaultHeaderPainterTest, TitleIconAlignment);
 
   // gfx::AnimationDelegate override:
   virtual void AnimationProgressed(const gfx::Animation* animation) OVERRIDE;
 
   // Paints highlight around the edge of the header for inactive restored
   // windows.
   void PaintHighlightForInactiveRestoredWindow(gfx::Canvas* canvas);
 
   // Paints the title bar, primarily the title string.
   void PaintTitleBar(gfx::Canvas* canvas);
 
   // Paints the header/content separator.
   void PaintHeaderContentSeparator(gfx::Canvas* canvas);
 
   // Returns the header bounds in the coordinates of |view_|. The header is
   // assumed to be positioned at the top left corner of |view_| and to have the
   // same width as |view_|.
   gfx::Rect GetLocalBounds() const;
 
   // Returns the bounds for the title.
   gfx::Rect GetTitleBounds() const;
 
   views::Widget* frame_;
   views::View* view_;
   views::View* window_icon_;  // May be NULL.
+  int window_icon_size_;
   FrameCaptionButtonContainerView* caption_button_container_;
 
   // The height of the header including the header/content separator.
   int height_;
 
   // Whether the header should be painted as active.
   Mode mode_;
 
   // Whether the header is painted for the first time.
   bool initial_paint_;
 
   scoped_ptr<gfx::SlideAnimation> activation_animation_;
 
   DISALLOW_COPY_AND_ASSIGN(DefaultHeaderPainter);
 };
 
 }  // namespace ash
 
 #endif  // ASH_FRAME_DEFAULT_HEADER_PAINTER_H_