Move shell service to toplevel shell namespace

mash/browser_driver/browser_driver_application_delegate.cc

Index: mash/browser_driver/browser_driver_application_delegate.cc
diff --git a/mash/browser_driver/browser_driver_application_delegate.cc b/mash/browser_driver/browser_driver_application_delegate.cc
index ad1613d94eb4ca27352868cee2bd316c72039f6a..9038bf170ba754c4abdc63f7da1d08745b1f3c09 100644
--- a/mash/browser_driver/browser_driver_application_delegate.cc
+++ b/mash/browser_driver/browser_driver_application_delegate.cc
@@ -55,15 +55,15 @@ BrowserDriverApplicationDelegate::BrowserDriverApplicationDelegate()
 BrowserDriverApplicationDelegate::~BrowserDriverApplicationDelegate() {}
 
 void BrowserDriverApplicationDelegate::Initialize(
-    mojo::Connector* connector,
-    const mojo::Identity& identity,
+    shell::Connector* connector,
+    const shell::Identity& identity,
     uint32_t id) {
   connector_ = connector;
   AddAccelerators();
 }
 
 bool BrowserDriverApplicationDelegate::AcceptConnection(
-    mojo::Connection* connection) {
+    shell::Connection* connection) {
   return true;
 }