Rename ApplicationDelegate to ShellClient

mojo/shell/public/cpp/lib/content_handler_factory.cc

Index: mojo/shell/public/cpp/lib/content_handler_factory.cc
diff --git a/mojo/shell/public/cpp/lib/content_handler_factory.cc b/mojo/shell/public/cpp/lib/content_handler_factory.cc
index 17714f5b4ad80c4ff8e576fc7b122e976a01800c..156faf0764409d92376b37b2fd717c143df3044c 100644
--- a/mojo/shell/public/cpp/lib/content_handler_factory.cc
+++ b/mojo/shell/public/cpp/lib/content_handler_factory.cc
@@ -15,7 +15,7 @@
 #include "base/threading/platform_thread.h"
 #include "mojo/message_pump/message_pump_mojo.h"
 #include "mojo/public/cpp/bindings/strong_binding.h"
-#include "mojo/shell/public/cpp/application_connection.h"
+#include "mojo/shell/public/cpp/connection.h"
 #include "mojo/shell/public/cpp/content_handler_factory.h"
 #include "mojo/shell/public/cpp/interface_factory_impl.h"
 
@@ -134,7 +134,7 @@ void ContentHandlerFactory::ManagedDelegate::RunApplication(
 }
 
 void ContentHandlerFactory::Create(
-    ApplicationConnection* connection,
+    Connection* connection,
     InterfaceRequest<shell::mojom::ContentHandler> request) {
   new ContentHandlerImpl(delegate_, std::move(request));
 }