AppModelBuilder to athena.

athena/test/sample_activity_factory.h

Index: athena/test/sample_activity_factory.h
diff --git a/athena/test/sample_activity_factory.h b/athena/test/sample_activity_factory.h
index a02d4177313cff7ad2de7f4702282d006ce7500b..f4bff047818aac6acd0a52b711aae38b462d738b 100644
--- a/athena/test/sample_activity_factory.h
+++ b/athena/test/sample_activity_factory.h
@@ -19,6 +19,8 @@ class SampleActivityFactory : public ActivityFactory {
   // Overridden from ActivityFactory:
   virtual Activity* CreateWebActivity(content::BrowserContext* browser_context,
                                       const GURL& url) OVERRIDE;
+  virtual Activity* CreateAppActivity(content::BrowserContext* browser_context,
+                                      const std::string& app_id) OVERRIDE;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SampleActivityFactory);