Support minimizing the panel into 3-pixel line on Windows. Also support bringing up/down the titl...

chrome/browser/ui/panels/native_panel.h

Index: chrome/browser/ui/panels/native_panel.h
===================================================================
--- chrome/browser/ui/panels/native_panel.h	(revision 90291)
+++ chrome/browser/ui/panels/native_panel.h	(working copy)
@@ -34,7 +34,7 @@
   virtual gfx::Rect GetPanelBounds() const = 0;
   virtual void SetPanelBounds(const gfx::Rect& bounds) = 0;
   virtual void MinimizePanel() = 0;
-  virtual void RestorePanel() = 0;
+  virtual void RestorePanel(bool titlebar_only) = 0;

[Dmitry Titov, 2011/06/24 02:05:45]

Hmm.

So we had 2 states (minimized and restored) and 2 methods to switch into one of
them. Now we've got 3rd state (show titlebar only).

I would suggest using 3rd method, or perhaps even have one method
(SetFrameMode?) with enum parameter (MINIMIZED, TITLE_ONLY, NORMAL?) rather then
modify the behavior of RestorePanel with a boolean.

[jianli, 2011/06/29 01:28:12]

As discussed, I changed to using one method SetPanelExpansionState. I also
changed to name the enum as ExpansionState.

   virtual void ClosePanel() = 0;
   virtual void ActivatePanel() = 0;
   virtual void DeactivatePanel() = 0;