Update Panel mininimize/restore button on strip and expansion state change.

chrome/browser/ui/panels/panel.h

Index: chrome/browser/ui/panels/panel.h
diff --git a/chrome/browser/ui/panels/panel.h b/chrome/browser/ui/panels/panel.h
index 477c5acbd89720cd0a9b36e77650eb5d45b56912..40ba42210e0c004e20a7d1d7026f9d48fed4218c 100644
--- a/chrome/browser/ui/panels/panel.h
+++ b/chrome/browser/ui/panels/panel.h
@@ -242,7 +242,7 @@ class Panel : public BrowserWindow,
   PanelStrip* panel_strip() const { return panel_strip_; }
 
   // Sets the current panel strip that contains this panel.
-  void SetPanelStrip(PanelStrip* new_strip);
+  void set_panel_strip(PanelStrip* new_strip) { panel_strip_ = new_strip; }
 
   ExpansionState expansion_state() const { return expansion_state_; }
   const gfx::Size& min_size() const { return min_size_; }
@@ -283,9 +283,6 @@ class Panel : public BrowserWindow,
   // Sets minimum and maximum size for the panel.
   void SetSizeRange(const gfx::Size& min_size, const gfx::Size& max_size);
 
-  // Sets whether the panel app icon is visible in the taskbar.
-  void SetAppIconVisibility(bool visible);
-
   // Whether the panel window is always on top.
   void SetAlwaysOnTop(bool on_top);
   bool always_on_top() const { return always_on_top_; }
@@ -298,6 +295,9 @@ class Panel : public BrowserWindow,
   // enables the resize mouse cursors when mouse is hovering over the edges.
   void EnableResizeByMouse(bool enable);
 
+  // Updates titlebar buttons.

[Dmitry Titov, 2012/05/02 03:23:08]

It'd be useful to add more info to the comment so it doesn't just repeat the
name of the method. For example, what aspect is updated and when this is called.
See also comment in panel.cc about naming.

+  void UpdateTitlebarButtons();
+
   // Changes the preferred size to acceptable based on min_size() and max_size()
   gfx::Size ClampSize(const gfx::Size& size) const;