Rename ApplicationDelegate to ShellClient

mojo/shell/public/cpp/BUILD.gn

Index: mojo/shell/public/cpp/BUILD.gn
diff --git a/mojo/shell/public/cpp/BUILD.gn b/mojo/shell/public/cpp/BUILD.gn
index 81da818d89beaa69b0b27e619b46ef551f7e9453..1d8ad189f2362c6699879bc45df019c48528dedb 100644
--- a/mojo/shell/public/cpp/BUILD.gn
+++ b/mojo/shell/public/cpp/BUILD.gn
@@ -21,16 +21,14 @@ source_set("cpp_for_chromium") {
 source_set("sources") {
   sources = [
     "app_lifetime_helper.h",
-    "application_connection.h",
-    "application_delegate.h",
     "application_impl.h",
     "application_runner.h",
     "connect.h",
+    "connection.h",
     "initialize_base_and_icu.cc",
     "interface_factory.h",
     "interface_factory_impl.h",
     "lib/app_lifetime_helper.cc",
-    "lib/application_delegate.cc",
     "lib/application_impl.cc",
     "lib/application_runner.cc",
     "lib/interface_factory_connector.h",
@@ -39,9 +37,11 @@ source_set("sources") {
     "lib/service_provider_impl.cc",
     "lib/service_registry.cc",
     "lib/service_registry.h",
+    "lib/shell_client.cc",
     "service_connector.h",
     "service_provider_impl.h",
     "shell.h",
+    "shell_client.h",
   ]
 
   deps = [