Supervised users: Re-check ManagementPolicy when ProfileIsSupervised changes.

chrome/test/base/testing_profile.h

Index: chrome/test/base/testing_profile.h
diff --git a/chrome/test/base/testing_profile.h b/chrome/test/base/testing_profile.h
index c787796e0bc51ccd06f7d1d975e620bcd2b8bc5e..322a7b0b889c8f6be66fc20ba4d7499f076b85ac 100644
--- a/chrome/test/base/testing_profile.h
+++ b/chrome/test/base/testing_profile.h
@@ -217,6 +217,8 @@ class TestingProfile : public Profile {
   // to provide an OffTheRecordProfileImpl instance.
   void SetOffTheRecordProfile(scoped_ptr<Profile> profile);
 
+  void SetSupervisedUserId(const std::string& id);
+
   // content::BrowserContext
   base::FilePath GetPath() const override;
   scoped_ptr<content::ZoomLevelDelegate> CreateZoomLevelDelegate(