Rename shell namespace to service_manager

chrome/app/mash/mash_runner.h

Index: chrome/app/mash/mash_runner.h
diff --git a/chrome/app/mash/mash_runner.h b/chrome/app/mash/mash_runner.h
index bf4058b106d2371be723dcc0871db2b39c304144..ac1a13cf45bd79171dd203f65f127e17c53ccd33 100644
--- a/chrome/app/mash/mash_runner.h
+++ b/chrome/app/mash/mash_runner.h
@@ -10,7 +10,7 @@
 #include "base/macros.h"
 #include "services/service_manager/public/interfaces/service.mojom.h"
 
-namespace shell {
+namespace service_manager {
 class Service;
 }
 
@@ -26,9 +26,9 @@ class MashRunner {
   void RunMain();
   void RunChild();
 
-  void StartChildApp(shell::mojom::ServiceRequest service_request);
+  void StartChildApp(service_manager::mojom::ServiceRequest service_request);
 
-  std::unique_ptr<shell::Service> service_;
+  std::unique_ptr<service_manager::Service> service_;
 
   DISALLOW_COPY_AND_ASSIGN(MashRunner);
 };