[cros] check for updates in WebUI OOBE can be cancelled in dev builds.

chrome/browser/chromeos/login/update_screen_actor.h

Index: chrome/browser/chromeos/login/update_screen_actor.h
diff --git a/chrome/browser/chromeos/login/update_screen_actor.h b/chrome/browser/chromeos/login/update_screen_actor.h
index aa345848ee8816f3e730f22625a5478cc03177ef..9c475953ef6623b8906c87228847c7ecc3f86681 100644
--- a/chrome/browser/chromeos/login/update_screen_actor.h
+++ b/chrome/browser/chromeos/login/update_screen_actor.h
@@ -13,8 +13,18 @@ class ScreenObserver;
 
 class UpdateScreenActor {
  public:
+  class Delegate {
+   public:
+    virtual ~Delegate() {}
+    // Force cancel update.
+    virtual void CancelUpdate() = 0;
+  };
+
   virtual ~UpdateScreenActor() {}

[whywhat, 2011/08/29 17:55:51]

nit: I think we'd better notify the screen that we're destroyed here.

[Ivan Korotkov, 2011/08/29 18:19:17]

Other actors with delegates (like UserImageScreenActor) don't do it, what for?
However, ~UpdateScreen() should set actor's delegate to NULL, fixed.

 
+  // Sets screen this actor belongs to.
+  virtual void SetDelegate(Delegate* screen) = 0;
+
   // Shows the screen.
   virtual void Show() = 0;