Simplify the ApplicationLoader interface in preparation for changes.

shell/BUILD.gn

Index: shell/BUILD.gn
diff --git a/shell/BUILD.gn b/shell/BUILD.gn
index 800ad70351877cd9d65a31d76850bac268d8b927..7c7ae604ab83e6a0b9a5c524f1a2b9ae7cde93d6 100644
--- a/shell/BUILD.gn
+++ b/shell/BUILD.gn
@@ -150,14 +150,14 @@ source_set("lib") {
     "context.h",
     "data_pipe_peek.cc",
     "data_pipe_peek.h",
-    "dynamic_application_loader.cc",
-    "dynamic_application_loader.h",
     "external_application_listener.h",
     "external_application_listener.cc",
     "filename_util.cc",
     "filename_util.h",
     "incoming_connection_listener.cc",
     "incoming_connection_listener.h",
+    "native_application_loader.cc",
+    "native_application_loader.h",
     "out_of_process_dynamic_service_runner.cc",
     "out_of_process_dynamic_service_runner.h",
     "url_resolver.cc",
@@ -404,8 +404,8 @@ test("mojo_shell_tests") {
     "child_process_host_unittest.cc",
     "command_line_util_unittest.cc",
     "data_pipe_peek_unittest.cc",
-    "dynamic_application_loader_unittest.cc",
     "in_process_dynamic_service_runner_unittest.cc",
+    "native_application_loader_unittest.cc",
     "shell_test_base.cc",
     "shell_test_base_android.cc",
     "shell_test_base.h",