Replaces ::ui:: with ui:: in ash

ash/mus/layout_manager.h

Index: ash/mus/layout_manager.h
diff --git a/ash/mus/layout_manager.h b/ash/mus/layout_manager.h
index 67be8c243d3ba7eb427a325239d3dfdd03585b1f..daf99fe10364e681b727d04ccb2b049e722c9c5b 100644
--- a/ash/mus/layout_manager.h
+++ b/ash/mus/layout_manager.h
@@ -19,39 +19,39 @@ namespace mus {
 // LayoutManagers observe both the bound container and all its children.
 // They must be attached prior to any windows being added to the
 // container.
-class LayoutManager : public ::ui::WindowObserver {
+class LayoutManager : public ui::WindowObserver {
  public:
   ~LayoutManager() override;
 
  protected:
-  explicit LayoutManager(::ui::Window* owner);
+  explicit LayoutManager(ui::Window* owner);
 
   void Uninstall();
 
   // Overridden from ui::WindowObserver:
   void OnTreeChanged(
-      const ::ui::WindowObserver::TreeChangeParams& params) override;
-  void OnWindowDestroying(::ui::Window* window) override;
-  void OnWindowBoundsChanged(::ui::Window* window,
+      const ui::WindowObserver::TreeChangeParams& params) override;
+  void OnWindowDestroying(ui::Window* window) override;
+  void OnWindowBoundsChanged(ui::Window* window,
                              const gfx::Rect& old_bounds,
                              const gfx::Rect& new_bounds) override;
   void OnWindowSharedPropertyChanged(
-      ::ui::Window* window,
+      ui::Window* window,
       const std::string& name,
       const std::vector<uint8_t>* old_data,
       const std::vector<uint8_t>* new_data) override;
 
-  virtual void WindowAdded(::ui::Window* window);
-  virtual void WindowRemoved(::ui::Window* window);
-  virtual void LayoutWindow(::ui::Window* window) = 0;
+  virtual void WindowAdded(ui::Window* window);
+  virtual void WindowRemoved(ui::Window* window);
+  virtual void LayoutWindow(ui::Window* window) = 0;
 
   // Add a property that triggers layout when changed.
   void AddLayoutProperty(const std::string& property);
 
-  ::ui::Window* owner() { return owner_; }
+  ui::Window* owner() { return owner_; }
 
  private:
-  ::ui::Window* owner_;
+  ui::Window* owner_;
 
   std::set<std::string> layout_properties_;