Enable logging from mojo_launcher

mojo/shell/BUILD.gn

Index: mojo/shell/BUILD.gn
diff --git a/mojo/shell/BUILD.gn b/mojo/shell/BUILD.gn
index 22f217fcc6b4a2297fa95248ddb7b53411799642..625d56eca2e62b9ebfdf8ebf9cdc567d29785d92 100644
--- a/mojo/shell/BUILD.gn
+++ b/mojo/shell/BUILD.gn
@@ -23,7 +23,8 @@ executable("mojo_shell") {
   ]
 
   deps = [
-    ":lib",
+    ":init",
+    ":lib",    
     "//base",
     "//build/config/sanitizers:deps",
     "//mojo/common",
@@ -41,6 +42,7 @@ executable("mojo_launcher") {
   deps = [
     ":external_application_registrar_bindings",
     ":external_application_registrar_connection",
+    ":init",
     ":in_process_dynamic_service_runner",
     "//base",
     "//build/config/sanitizers:deps",
@@ -51,6 +53,17 @@ executable("mojo_launcher") {
   ]
 }
 
+source_set("init") {
+  sources = [
+    "init.cc",
+    "init.h",
+  ]
+
+  deps = [
+    "//base",
+  ]
+}
+
 source_set("in_process_dynamic_service_runner") {
   sources = [
     "dynamic_service_runner.cc",
@@ -97,8 +110,6 @@ source_set("lib") {
     "filename_util.h",
     "incoming_connection_listener_posix.cc",
     "incoming_connection_listener_posix.h",
-    "init.cc",
-    "init.h",
     "mojo_url_resolver.cc",
     "mojo_url_resolver.h",
     "out_of_process_dynamic_service_runner.cc",
@@ -116,6 +127,7 @@ source_set("lib") {
   deps = [
     ":app_child_process_bindings",
     ":external_application_registrar_bindings",
+    ":init",
     ":in_process_dynamic_service_runner",
     "//base",
     "//base/third_party/dynamic_annotations",
@@ -356,6 +368,7 @@ source_set("test_support") {
   ]
 
   deps = [
+    ":init",
     ":lib",
     "//base",
     "//mojo/application_manager",