Make panel adjust bounds per preferred size change notification on Windows.

chrome/browser/ui/panels/native_panel.h

Index: chrome/browser/ui/panels/native_panel.h
===================================================================
--- chrome/browser/ui/panels/native_panel.h	(revision 94932)
+++ chrome/browser/ui/panels/native_panel.h	(working copy)
@@ -34,7 +34,12 @@
 
   virtual void ShowPanel() = 0;
   virtual void ShowPanelInactive() = 0;
+
+  // The restored bounds are the original bounds when the panel is in expanded
+  // state.
+  virtual gfx::Rect GetPanelRestoredBounds() const = 0;

[Dmitry Titov, 2011/08/05 19:02:20]

As discussed, lets replace RestoredBounds with RestoredHeight. Width can be set
directly via SetBounds.

[jianli, 2011/08/09 19:56:16]

Done.

   virtual gfx::Rect GetPanelBounds() const = 0;
+  virtual void SetPanelRestoredBounds(const gfx::Rect& bounds) = 0;
   virtual void SetPanelBounds(const gfx::Rect& bounds) = 0;
 
   // The native panel needs to update the bounds. In addition, it needs to watch
@@ -62,6 +67,10 @@
   virtual Browser* GetPanelBrowser() const = 0;
   virtual void DestroyPanelBrowser() = 0;
 
+  // Returns the size of the non-client area, that is, the window size minus
+  // the size of the client area.
+  virtual gfx::Size GetNonClientAreaSize() const = 0;
+
   // Returns a pointer to the testing interface to the native panel.
   virtual NativePanelTesting* GetNativePanelTesting() = 0;
 };