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

chrome/browser/ui/panels/panel.h

Index: chrome/browser/ui/panels/panel.h
===================================================================
--- chrome/browser/ui/panels/panel.h	(revision 90982)
+++ chrome/browser/ui/panels/panel.h	(working copy)
@@ -26,14 +26,26 @@
 //   other Panels.  For example deleting a panel would rearrange other panels.
 class Panel : public BrowserWindow {
  public:
+  enum ExpansionState {
+   EXPANDED,
+   TITLE_ONLY,
+   MINIMIZED
+  };
+
   virtual ~Panel();
 
   // Returns the PanelManager associated with this panel.
   PanelManager* manager() const;
 
-  void Minimize();
-  void Restore();
+  // Sets the expansion state to one of the following values:
+  // * Fully expanded

[jennb, 2011/06/29 23:17:54]

Move these to comments on the enum values.

[jianli, 2011/06/30 01:28:33]

Done.

+  // * Shown with title-bar
+  // * Minimized to 3-pixel lines
+  void SetExpansionState(ExpansionState expansion_state);
 
+  // Should we bring up the title-bar given the current mouse point?

[jennb, 2011/06/29 23:17:54]

Comments should explain what "bring up title-bar" means. Otherwise, these
comments simply repeat the name of the function without providing additional
info.

[jianli, 2011/06/30 01:28:33]

Done.

+  bool ShouldBringUpTitleBar(int mouse_x, int mouse_y) const;
+
   // BrowserWindow overrides.
   virtual void Show() OVERRIDE;
   virtual void ShowInactive() OVERRIDE;
@@ -144,6 +156,8 @@
   NativePanel* native_panel() { return native_panel_; }
 #endif
 
+  ExpansionState expansion_state() const { return expansion_state_; }
+
  protected:
   virtual void DestroyBrowser() OVERRIDE;
 
@@ -163,6 +177,8 @@
   // PanelBrowserWindowGtk/PanelBrowserView/PanelBrowserWindowCocoa.
   NativePanel* native_panel_;  // Weak, owns us.
 
+  ExpansionState expansion_state_;
+
   DISALLOW_COPY_AND_ASSIGN(Panel);
 };