Panels refactor: Support browserless panels on Linux.

chrome/browser/ui/panels/panel_drag_gtk.h

Index: chrome/browser/ui/panels/panel_drag_gtk.h
diff --git a/chrome/browser/ui/panels/panel_drag_gtk.h b/chrome/browser/ui/panels/panel_drag_gtk.h
index a70e0625437d782aeaedd85931f0197bf6aa74f7..2d39333841da5728005c7b3ca3819aa1f79eacf3 100644
--- a/chrome/browser/ui/panels/panel_drag_gtk.h
+++ b/chrome/browser/ui/panels/panel_drag_gtk.h
@@ -43,7 +43,8 @@ class PanelDragGtk {
                                  GtkWidget* titlebar_widget);
 
  private:
-  friend class NativePanelTestingGtk;
+  friend class NativePanelTestingGtk;  // legacy
+  friend class GtkNativePanelTesting;

[jianli, 2012/08/09 00:52:51]

Might be better to rename NativePanelTestingGtk to OldNativePanelTestingGtk and
use that name for the new panel testing so that the naming is consistent across
platforms.

[jennb, 2012/08/10 18:45:42]

Changing the name of the new class means not having to change all the old test
files. This is consistent with what I did for Cocoa.

 
   enum DragState {
     NOT_DRAGGING,