Add Panel::SetPanelBoundsInstantly for all platforms.

chrome/browser/ui/panels/panel_browser_window_cocoa.mm

Index: chrome/browser/ui/panels/panel_browser_window_cocoa.mm
diff --git a/chrome/browser/ui/panels/panel_browser_window_cocoa.mm b/chrome/browser/ui/panels/panel_browser_window_cocoa.mm
index 64a9224b6b91c83c3ede9b80d9f15a5bef249576..43bd1b8ca7be88472fc8027836348ffa32902c4c 100644
--- a/chrome/browser/ui/panels/panel_browser_window_cocoa.mm
+++ b/chrome/browser/ui/panels/panel_browser_window_cocoa.mm
@@ -109,7 +109,17 @@ void PanelBrowserWindowCocoa::SetPanelBounds(const gfx::Rect& bounds) {
   bounds_ = bounds;
 
   NSRect frame = ConvertCoordinatesToCocoa(bounds);
-  [controller_ setPanelFrame:frame];
+  [controller_ setPanelFrame:frame animate:true];

[Dmitry Titov, 2011/12/01 20:52:50]

should be animate:YES in Obj-C code

+}
+
+void PanelBrowserWindowCocoa::SetPanelBoundsInstantly(const gfx::Rect& bounds) {

[jennb, 2011/12/01 20:52:37]

Could you use the same pattern here as you did for Win and GTK with the common
code in a subr?

+  if (bounds_ == bounds)
+    return;
+
+  bounds_ = bounds;
+
+  NSRect frame = ConvertCoordinatesToCocoa(bounds);
+  [controller_ setPanelFrame:frame animate:false];

[Dmitry Titov, 2011/12/01 20:52:50]

animate:NO

 }
 
 void PanelBrowserWindowCocoa::ClosePanel() {