Shell related switches -> aura shell switches.

ui/aura/client/activation_client.cc

Index: ui/aura/client/activation_client.cc
===================================================================
--- ui/aura/client/activation_client.cc	(revision 114849)
+++ ui/aura/client/activation_client.cc	(working copy)
@@ -4,12 +4,14 @@
 
 #include "ui/aura/client/activation_client.h"
 
-#include "ui/aura/client/aura_constants.h"
 #include "ui/aura/root_window.h"
 
 namespace aura {
 namespace client {
 
+const char kRootWindowActivationClient[] = "RootWindowActivationClient";
+const char kRootWindowActiveWindow[] = "RootWindowActiveWindow";
+
 void SetActivationClient(ActivationClient* client) {
   RootWindow::GetInstance()->SetProperty(kRootWindowActivationClient, client);
 }