Mandoline UI Process: Update namespaces and file names

components/mus/view_tree_host_connection.cc

Index: components/mus/view_tree_host_connection.cc
diff --git a/components/mus/view_tree_host_connection.cc b/components/mus/view_tree_host_connection.cc
index 5fc33910c312b565174a1c517e113afbfd47047b..8646f53f307885134cedd061d40178d222198d2b 100644
--- a/components/mus/view_tree_host_connection.cc
+++ b/components/mus/view_tree_host_connection.cc
@@ -7,7 +7,7 @@
 #include "components/mus/connection_manager.h"
 #include "components/mus/view_tree_host_impl.h"
 
-namespace view_manager {
+namespace mus {
 
 ViewTreeHostConnection::ViewTreeHostConnection(
     scoped_ptr<ViewTreeHostImpl> host_impl,
@@ -64,4 +64,4 @@ void ViewTreeHostConnectionImpl::OnDisplayInitialized() {
       client_.Pass()));
 }
 
-}  // namespace view_manager
+}  // namespace mus