Add Panel::SetPanelBoundsInstantly for all platforms.

chrome/browser/ui/panels/panel_browser_window_gtk.h

Index: chrome/browser/ui/panels/panel_browser_window_gtk.h
diff --git a/chrome/browser/ui/panels/panel_browser_window_gtk.h b/chrome/browser/ui/panels/panel_browser_window_gtk.h
index f094d68eb2cbdfd22a627de1053cff45bddc2381..e5e5e97ac6735a033c70df38fa12130a6163e2be 100644
--- a/chrome/browser/ui/panels/panel_browser_window_gtk.h
+++ b/chrome/browser/ui/panels/panel_browser_window_gtk.h
@@ -70,6 +70,7 @@ class PanelBrowserWindowGtk : public BrowserWindowGtk,
   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;
   virtual void DeactivatePanel() OVERRIDE;
@@ -116,6 +117,8 @@ class PanelBrowserWindowGtk : public BrowserWindowGtk,
   void EndDrag(bool canceled);
   void CleanupDragDrop();
 
+  void SetBoundsInternal(const gfx::Rect& bounds, bool animate);
+
   GdkRectangle GetTitlebarRectForDrawAttention() const;
 
   CHROMEGTK_CALLBACK_1(PanelBrowserWindowGtk, gboolean,