Rename shell namespace to service_manager

ash/mus/keyboard_ui_mus.cc

Index: ash/mus/keyboard_ui_mus.cc
diff --git a/ash/mus/keyboard_ui_mus.cc b/ash/mus/keyboard_ui_mus.cc
index e066b133faf4976a42930248c023cc6496fddef3..ade175fd166c5468086bb3f21d23d060219611dd 100644
--- a/ash/mus/keyboard_ui_mus.cc
+++ b/ash/mus/keyboard_ui_mus.cc
@@ -10,7 +10,7 @@
 
 namespace ash {
 
-KeyboardUIMus::KeyboardUIMus(::shell::Connector* connector)
+KeyboardUIMus::KeyboardUIMus(service_manager::Connector* connector)
     : is_enabled_(false), observer_binding_(this) {
   if (connector) {
     // TODO(sky): should be something like mojo:keyboard, but need mapping.
@@ -23,7 +23,7 @@ KeyboardUIMus::~KeyboardUIMus() {}
 
 // static
 std::unique_ptr<KeyboardUI> KeyboardUIMus::Create(
-    ::shell::Connector* connector) {
+    service_manager::Connector* connector) {
   return base::MakeUnique<KeyboardUIMus>(connector);
 }