Change the visual appearance of panel on GTK per new UI design.

chrome/browser/ui/panels/panel_browser_window_gtk.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 CHROME_BROWSER_UI_PANELS_PANEL_BROWSER_WINDOW_GTK_H_
 #define CHROME_BROWSER_UI_PANELS_PANEL_BROWSER_WINDOW_GTK_H_
 
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop.h"
 #include "chrome/browser/ui/gtk/browser_window_gtk.h"
@@ skipping 10 matching lines @@
 class Image;
 }
 
 class PanelBrowserWindowGtk : public BrowserWindowGtk,
                               public NativePanel,
                               public ui::AnimationDelegate {
  public:
   enum PaintState {
     PAINT_AS_ACTIVE,
     PAINT_AS_INACTIVE,
+    PAINT_AS_MINIMIZED,
     PAINT_FOR_ATTENTION
   };
 
   PanelBrowserWindowGtk(Browser* browser, Panel* panel,
                         const gfx::Rect& bounds);
   virtual ~PanelBrowserWindowGtk();
 
   // BrowserWindowGtk override
   virtual void Init() OVERRIDE;
-  virtual bool ShouldDrawContentDropShadow() const OVERRIDE;
 
   // BrowserWindow overrides
   virtual void SetBounds(const gfx::Rect& bounds) OVERRIDE;
 
   // Overrides BrowserWindowGtk::NotificationObserver::Observe
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
-  PaintState GetPaintState() const;
+  bool UsingDefaultTheme() const;
 
   Panel* panel() const { return panel_.get(); }
+  PaintState paint_state() const { return paint_state_; }
 
  protected:
   // BrowserWindowGtk overrides
-  virtual BrowserTitlebar* CreateBrowserTitlebar() OVERRIDE;
+  virtual BrowserTitlebarBase* CreateBrowserTitlebar() OVERRIDE;
   virtual bool GetWindowEdge(int x, int y, GdkWindowEdge* edge) OVERRIDE;
   virtual GdkRegion* GetWindowShape(int width, int height) const OVERRIDE;
-  virtual void DrawCustomFrameBorder(GtkWidget* widget) OVERRIDE;
   virtual bool HandleTitleBarLeftMousePress(
       GdkEventButton* event,
       guint32 last_click_time,
       gfx::Point last_click_position) OVERRIDE;
   virtual bool HandleWindowEdgeLeftMousePress(
       GtkWindow* window,
       GdkWindowEdge edge,
       GdkEventButton* event) OVERRIDE;
   virtual void SaveWindowPosition() OVERRIDE;
   virtual void SetGeometryHints() OVERRIDE;
   virtual bool UseCustomFrame() const OVERRIDE;
-  virtual bool UsingCustomPopupFrame() const OVERRIDE;
+  virtual void DrawFrame(GtkWidget* widget, GdkEventExpose* event) OVERRIDE;
   virtual void OnSizeChanged(int width, int height) OVERRIDE;
-  virtual void DrawCustomFrame(cairo_t* cr, GtkWidget* widget,
-                               GdkEventExpose* event) OVERRIDE;
-  virtual void DrawPopupFrame(cairo_t* cr, GtkWidget* widget,
-                              GdkEventExpose* event) OVERRIDE;
   virtual void ActiveWindowChanged(GdkWindow* active_window) OVERRIDE;
 
   // Overridden from NativePanel:
   virtual void ShowPanel() OVERRIDE;
   virtual void ShowPanelInactive() OVERRIDE;
   virtual gfx::Rect GetPanelBounds() const OVERRIDE;
   virtual void SetPanelBounds(const gfx::Rect& bounds) OVERRIDE;
   virtual void SetPanelBoundsInstantly(const gfx::Rect& bounds) OVERRIDE;
   virtual void ClosePanel() OVERRIDE;
   virtual void ActivatePanel() OVERRIDE;
@@ skipping 44 matching lines @@
   virtual void AnimationEnded(const ui::Animation* animation) OVERRIDE;
   virtual void AnimationProgressed(const ui::Animation* animation) OVERRIDE;
 
   // Creates helper for handling drags if not already created.
   void EnsureDragHelperCreated();
 
   void SetBoundsInternal(const gfx::Rect& bounds, bool animate);
 
   PanelBrowserTitlebarGtk* GetPanelTitlebar() const;
 
-  // Returns the theme image to paint the frame.
-  const gfx::Image* GetThemeFrameImage() const;
+  // Returns the image to paint the frame.
+  const gfx::Image* GetFrameBackground() const;
+  const gfx::Image* GetDefaultFrameBackground() const;
+  const gfx::Image* GetThemedFrameBackground() const;
 
   CHROMEGTK_CALLBACK_1(PanelBrowserWindowGtk, gboolean,
                        OnTitlebarButtonReleaseEvent, GdkEventButton*);
 
   scoped_ptr<Panel> panel_;
   gfx::Rect bounds_;
 
   scoped_ptr<PanelDragGtk> drag_helper_;
 
   // Size of window frame. Empty until the window has been allocated and sized.
   gfx::Size frame_size_;
 
+  // Indicates different painting state, active, drawing attention or else.
+  PaintState paint_state_;
+
   // Indicates that the panel is currently drawing attention.
   bool is_drawing_attention_;
 
   // Used to animate the bounds change.
   scoped_ptr<PanelBoundsAnimation> bounds_animator_;
   gfx::Rect animation_start_bounds_;
 
   // This records the bounds set on the last animation progress notification.
   // We need this for the case where a new bounds animation starts before the
   // current one completes. In this case, we want to start the new animation
   // from where the last one left.
   gfx::Rect last_animation_progressed_bounds_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(PanelBrowserWindowGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_PANELS_PANEL_BROWSER_WINDOW_GTK_H_