Remove stops_event_propagation from Window, since it's broken.

ash/test/test_shell_delegate.h

Index: ash/test/test_shell_delegate.h
===================================================================
--- ash/test/test_shell_delegate.h	(revision 128508)
+++ ash/test/test_shell_delegate.h	(working copy)
@@ -20,9 +20,9 @@
   // Overridden from ShellDelegate:
   virtual views::Widget* CreateStatusArea() OVERRIDE;
   virtual bool CanCreateLauncher() OVERRIDE;
-#if defined(OS_CHROMEOS)
   virtual void LockScreen() OVERRIDE;
-#endif
+  virtual void UnlockScreen() OVERRIDE;
+  virtual bool IsScreenLocked() const OVERRIDE;
   virtual void Exit() OVERRIDE;
   virtual AppListViewDelegate* CreateAppListViewDelegate() OVERRIDE;
   virtual std::vector<aura::Window*> GetCycleWindowList(
@@ -35,6 +35,8 @@
   virtual UserWallpaperDelegate* CreateUserWallpaperDelegate() OVERRIDE;
 
  private:
+  bool locked_;
+
   DISALLOW_COPY_AND_ASSIGN(TestShellDelegate);
 };