Mandoline UI Process: Update namespaces and file names

components/mus/surfaces/surfaces_scheduler.cc

Index: components/mus/surfaces/surfaces_scheduler.cc
diff --git a/components/mus/surfaces/surfaces_scheduler.cc b/components/mus/surfaces/surfaces_scheduler.cc
index a938f3344ed07d22f06d6844414bb1ca1981ba11..f3752f83ee23b96d9f9c8bf2e737f261e8c6e30a 100644
--- a/components/mus/surfaces/surfaces_scheduler.cc
+++ b/components/mus/surfaces/surfaces_scheduler.cc
@@ -8,7 +8,7 @@
 #include "cc/scheduler/compositor_timing_history.h"
 #include "cc/surfaces/display.h"
 
-namespace surfaces {
+namespace mus {
 
 SurfacesScheduler::SurfacesScheduler()
     : rendering_stats_instrumentation_(
@@ -98,4 +98,4 @@ void SurfacesScheduler::SendBeginFramesToChildren(
 
 void SurfacesScheduler::SendBeginMainFrameNotExpectedSoon() {}
 
-}  // namespace mojo
+}  // namespace mus