Simplify ContentHandlerFactory a bit.

examples/forwarding_content_handler/forwarding_content_handler.cc

Index: examples/forwarding_content_handler/forwarding_content_handler.cc
diff --git a/examples/forwarding_content_handler/forwarding_content_handler.cc b/examples/forwarding_content_handler/forwarding_content_handler.cc
index 91e9d3516c62891b36bec8cd4d7c231908a637f3..cfc284a02ab05ebf4d6bc1a0db15e187a19704cd 100644
--- a/examples/forwarding_content_handler/forwarding_content_handler.cc
+++ b/examples/forwarding_content_handler/forwarding_content_handler.cc
@@ -54,14 +54,14 @@ class ForwardingApplicationImpl : public Application {
 class ForwardingContentHandler : public ApplicationDelegate,
                                  public ContentHandlerFactory::ManagedDelegate {
  public:
-  ForwardingContentHandler() : content_handler_factory_(this) {}
+  ForwardingContentHandler() {}
 
  private:
   // Overridden from ApplicationDelegate:
   bool ConfigureIncomingConnection(
       ServiceProviderImpl* service_provider_impl) override {
     service_provider_impl->AddService<ContentHandler>(
-        content_handler_factory_.GetInterfaceRequestHandler());
+        ContentHandlerFactory::GetInterfaceRequestHandler(this));
     return true;
   }
 
@@ -80,8 +80,6 @@ class ForwardingContentHandler : public ApplicationDelegate,
         new ForwardingApplicationImpl(application_request.Pass(), target_url));
   }
 
-  ContentHandlerFactory content_handler_factory_;
-
   DISALLOW_COPY_AND_ASSIGN(ForwardingContentHandler);
 };