Put code in //services/window_manager in namespace window_manager

services/window_manager/focus_rules.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_FOCUS_RULES_H_
 #define SERVICES_WINDOW_MANAGER_FOCUS_RULES_H_
 
 #include "mojo/services/public/cpp/view_manager/types.h"
 #include "mojo/services/public/cpp/view_manager/view.h"
 
-namespace mojo {
+namespace window_manager {
 
 // Implemented by an object that establishes the rules about what can be
 // focused or activated.
 class FocusRules {
  public:
   virtual ~FocusRules() {}
 
   // Returns true if the children of |window| can be activated.
-  virtual bool SupportsChildActivation(View* window) const = 0;
+  virtual bool SupportsChildActivation(mojo::View* window) const = 0;
 
   // Returns true if |view| is a toplevel view. Whether or not a view
   // is considered toplevel is determined by a similar set of rules that
   // govern activation and focus. Not all toplevel views are activatable,
   // call CanActivateView() to determine if a view can be activated.
-  virtual bool IsToplevelView(View* view) const = 0;
+  virtual bool IsToplevelView(mojo::View* view) const = 0;
   // Returns true if |view| can be activated or focused.
-  virtual bool CanActivateView(View* view) const = 0;
+  virtual bool CanActivateView(mojo::View* view) const = 0;
   // For CanFocusView(), null is supported, because null is a valid focusable
   // view (in the case of clearing focus).
-  virtual bool CanFocusView(View* view) const = 0;
+  virtual bool CanFocusView(mojo::View* view) const = 0;
 
   // Returns the toplevel view containing |view|. Not all toplevel views
   // are activatable, call GetActivatableView() instead to return the
   // activatable view, which might be in a different hierarchy.
   // Will return null if |view| is not contained by a view considered to be
   // a toplevel view.
-  virtual View* GetToplevelView(View* view) const = 0;
+  virtual mojo::View* GetToplevelView(mojo::View* view) const = 0;
   // Returns the activatable or focusable view given an attempt to activate or
   // focus |view|. Some possible scenarios (not intended to be exhaustive):
   // - |view| is a child of a non-focusable view and so focus must be set
   //   according to rules defined by the delegate, e.g. to a parent.
   // - |view| is an activatable view that is the transient parent of a modal
   //   view, so attempts to activate |view| should result in the modal
   //   transient being activated instead.
   // These methods may return null if they are unable to find an activatable
   // or focusable view given |view|.
-  virtual View* GetActivatableView(View* view) const = 0;
-  virtual View* GetFocusableView(View* view) const = 0;
+  virtual mojo::View* GetActivatableView(mojo::View* view) const = 0;
+  virtual mojo::View* GetFocusableView(mojo::View* view) const = 0;
 
   // Returns the next view to activate in the event that |ignore| is no longer
   // activatable. This function is called when something is happening to
   // |ignore| that means it can no longer have focus or activation, including
   // but not limited to:
   // - it or its parent hierarchy is being hidden, or removed from the
   //   RootView.
   // - it is being destroyed.
   // - it is being explicitly deactivated.
   // |ignore| cannot be null.
-  virtual View* GetNextActivatableView(View* ignore) const = 0;
+  virtual mojo::View* GetNextActivatableView(mojo::View* ignore) const = 0;
 };
 
-}  // namespace mojo
+}  // namespace window_manager
 
 #endif  // SERVICES_WINDOW_MANAGER_FOCUS_RULES_H_