mac: Update clients of scoped_nsobject.h.

chrome/browser/ui/cocoa/window_size_autosaver.h

Index: chrome/browser/ui/cocoa/window_size_autosaver.h
diff --git a/chrome/browser/ui/cocoa/window_size_autosaver.h b/chrome/browser/ui/cocoa/window_size_autosaver.h
index 8d136e38a95e147c089eb3a57dd887a83da6b9c5..e167125afa6343153cf313af2c5a75bdcd2f6661 100644
--- a/chrome/browser/ui/cocoa/window_size_autosaver.h
+++ b/chrome/browser/ui/cocoa/window_size_autosaver.h
@@ -10,7 +10,8 @@ class PrefService;
 
 // WindowSizeAutosaver is a helper class that makes it easy to let windows
 // autoremember their position or position and size in a PrefService object.
-// To use this, add a |scoped_nsobject<WindowSizeAutosaver>| to your window
+// To use this, add a |base::scoped_nsobject<WindowSizeAutosaver>| to your
+// window
 // controller and initialize it in the window controller's init method, passing
 // a window and an autosave name. The autosaver will register for "window moved"
 // and "window resized" notifications and write the current window state to the