Put code in //services/window_manager in namespace window_manager

services/window_manager/view_targeter.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef SERVICES_WINDOW_MANAGER_VIEW_TARGETER_H_
 #define SERVICES_WINDOW_MANAGER_VIEW_TARGETER_H_
 
 #include "ui/events/event_targeter.h"
 
-namespace mojo {
+namespace window_manager {
 
 class ViewTarget;
 
 class ViewTargeter : public ui::EventTargeter {
  public:
   ViewTargeter();
   ~ViewTargeter() override;
 
  protected:
   // ui::EventTargeter:
@@ skipping 11 matching lines @@
   ViewTarget* FindTargetForKeyEvent(ViewTarget* view, const ui::KeyEvent& key);
 
   // Deals with cases where the |root_view| needs to change how things are
   // dispatched. (For example, in the case of capture.)
   ViewTarget* FindTargetInRootView(ViewTarget* root_view,
                                    const ui::LocatedEvent& event);
 
   DISALLOW_COPY_AND_ASSIGN(ViewTargeter);
 };
 
-}  // namespace mojo
+}  // namespace window_manager
 
 #endif  // SERVICES_WINDOW_MANAGER_VIEW_TARGETER_H_