Mojo: Use InterfaceFactory<Interface> for service registration

mojo/public/cpp/bindings/tests/interface_ptr_unittest.cc

Index: mojo/public/cpp/bindings/tests/interface_ptr_unittest.cc
diff --git a/mojo/public/cpp/bindings/tests/interface_ptr_unittest.cc b/mojo/public/cpp/bindings/tests/interface_ptr_unittest.cc
index cd8f37cab81086681160409cb7ca8c8d57ada678..b6add513e5c6167e9194e97563d5ebbb52f46191 100644
--- a/mojo/public/cpp/bindings/tests/interface_ptr_unittest.cc
+++ b/mojo/public/cpp/bindings/tests/interface_ptr_unittest.cc
@@ -41,10 +41,6 @@ class MathCalculatorImpl : public InterfaceImpl<math::Calculator> {
     got_connection_ = true;
   }
 
-  virtual void OnConnectionError() MOJO_OVERRIDE {
-    delete this;
-  }
-
   virtual void Clear() MOJO_OVERRIDE {
     client()->Output(total_);
   }
@@ -164,10 +160,6 @@ class ReentrantServiceImpl : public InterfaceImpl<sample::Service> {
     got_connection_ = true;
   }
 
-  virtual void OnConnectionError() MOJO_OVERRIDE {
-    delete this;
-  }
-
   bool got_connection() const {
     return got_connection_;
   }