Mandoline UI Process: Update namespaces and file names

components/mus/gesture_manager.h

Index: components/mus/gesture_manager.h
diff --git a/components/mus/gesture_manager.h b/components/mus/gesture_manager.h
index 373e8f856740e42b47a41f5c3a6632233ee5b2b4..2eac355e6bd0d37fe49c17b6c9ccee7e59931d3c 100644
--- a/components/mus/gesture_manager.h
+++ b/components/mus/gesture_manager.h
@@ -15,7 +15,7 @@ namespace mojo {
 class Event;
 }
 
-namespace view_manager {
+namespace mus {
 
 class GestureManagerDelegate;
 class GestureManagerTest;
@@ -183,6 +183,6 @@ class GestureManager {
   DISALLOW_COPY_AND_ASSIGN(GestureManager);
 };
 
-}  // namespace view_manager
+}  // namespace mus
 
 #endif  // COMPONENTS_MUS_GESTURE_MANAGER_H_