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 533d990ee9afe7401376169940a0d141b2652cb0..e3e9f1e27cd481bedb430bdc1be12dd383ef676b 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_;
   }