Consolidate AppControllDelegate to ExtensionsDelegate

athena/extensions/test/test_extensions_delegate.cc

Index: athena/extensions/test/test_extensions_delegate.cc
diff --git a/athena/extensions/test/test_extensions_delegate.cc b/athena/extensions/test/test_extensions_delegate.cc
index cac6a007eae5c0b3c50dcad6e8e0d54bc6e54705..d22bf29430d69ebc4463bc115157bbf27aec713a 100644
--- a/athena/extensions/test/test_extensions_delegate.cc
+++ b/athena/extensions/test/test_extensions_delegate.cc
@@ -23,7 +23,8 @@ class TestExtensionsDelegate : public ExtensionsDelegate {
   virtual const extensions::ExtensionSet& GetInstalledExtensions() OVERRIDE {
     return shell_extensions_;
   }
-  virtual void LaunchApp(const std::string& app_id) OVERRIDE {}
+  virtual bool LaunchApp(const std::string& app_id) OVERRIDE { return true; }
+  virtual bool UnloadApp(const std::string& app_id) OVERRIDE { return false; }
 
   extensions::ExtensionSet shell_extensions_;