Put code in //services/window_manager in namespace window_manager

services/window_manager/focus_controller_observer.h

Index: services/window_manager/focus_controller_observer.h
diff --git a/services/window_manager/focus_controller_observer.h b/services/window_manager/focus_controller_observer.h
index 658c3c9137cc9b751f32d21a187a5d83a1998c79..ea0d57ed94c00b83b4bcc5e9bb10a001f724616a 100644
--- a/services/window_manager/focus_controller_observer.h
+++ b/services/window_manager/focus_controller_observer.h
@@ -6,8 +6,10 @@
 #define SERVICES_WINDOW_MANAGER_FOCUS_CONTROLLER_OBSERVER_H_
 
 namespace mojo {
-
 class View;
+}
+
+namespace window_manager {
 
 class FocusControllerObserver {
  public:
@@ -15,22 +17,23 @@ class FocusControllerObserver {
   // (|active| is null in this case.) |old_active| refers to the
   // previous active view or null if there was no previously active
   // view.
-  virtual void OnViewActivated(View* gained_active,
-                               View* lost_active) = 0;
+  virtual void OnViewActivated(mojo::View* gained_active,
+                               mojo::View* lost_active) = 0;
 
   // Called when focus moves from |lost_focus| to |gained_focus|.
-  virtual void OnViewFocused(View* gained_focus, View* lost_focus) = 0;
+  virtual void OnViewFocused(mojo::View* gained_focus,
+                             mojo::View* lost_focus) = 0;
 
   // Called when during view activation the currently active view is
   // selected for activation. This can happen when a view requested for
   // activation cannot be activated because a system modal view is active.
-  virtual void OnAttemptToReactivateView(View* request_active,
-                                         View* actual_active) {}
+  virtual void OnAttemptToReactivateView(mojo::View* request_active,
+                                         mojo::View* actual_active) {}
 
  protected:
   virtual ~FocusControllerObserver() {}
 };
 
-}  // namespace mojo
+}  // namespace window_manager
 
 #endif  // SERVICES_WINDOW_MANAGER_FOCUS_CONTROLLER_OBSERVER_H_